RESEARCH CIRCULAR 139 (Revised) NOVEMBER 1973

PERFORMANCE RECORDS OF WOODY IN E SECRES ARB E UM t Hol y Family and Box Family quiloliaceae and Bux.aceae

OHIO AGRICULT. RAL RESEARCH AND DEVELOPMENT CENTER Woosterg h·o A rn -< ~ ,,)> -I 0 n 0 ~ ~ AJ -I ~ zrn -f CJ) z- CJ) nrn AJ rn CJ) -f )> AJ CP 0 AJ rn -f c ~ PERFORMANCE RECORDS OF WOODY PLANTS IN THE SECREST I. Holly Family and Box Family AquHoUaceae and Buxaceae JOHN E. FORD Curator, Secrest Arboretum

There are presently more than 2,000 different Many hollies and box are sensitive to full winter species, varieties, hybrids, and cultivars of woody sunshine, esp~cially when planted on the south side plants growing in the Secrest Arboretum. These of a building. Convexleaf Japanese Holly (!lex cre­ represent more than 200 genera distributed in some nata 'Convexa') plantings on the north side of a build­ 68 families. More than 600 individual hollies and ing have come through recent winters in good condi­ boxwoods have been outplanted, with some 800 plants tion, while those on the south side of the same build­ still in the propagation facilities. There are 189 dif­ ing have considerable killing and browning of leaves ferent types of holly and box currently growing in the and twigs each winter. A number of Asheville Com­ Arboretum. mon Box ( Buxus sempervirens 'Asheville') have died Although the first plantings of trees in the area when planted on the south side of buildings fully ex­ which became the Secrest Arboretum were made in posed to winter sunshine. This same cultivar has been 1901 and 1903, the first holly was not set out until successfully used as a hedge where the plants are par­ 1916 and the first boxwood was planted in 1923. tially shaded from the winter sunshine and are not The majority of the plantings in the Arboretum against a building. have been set out on a 12 foot by 12 foot spacing. As plants mature and need additional growing space, adjacent plants are removed. Plants in the Arbore­ tum are pruned when they are set out but no addi­ tional is done except to remove dead or brok­ en branches. Plants are allowed to grow into their natural shape. Hollies and companion plants in the Holly Display (Compartment T) are set out following a landscape plan so that the distance be­ tween these plants will be variable. Proper interpretation of records is essential. Plants which succeed or fail in the Arboretum might do differently in other situations or locations. The loss of a may be due to a number of factors. Many hollies and box have been killed over the winter when they are on sites excessively wet or ex­ posed to the wind. The same cultivars on sites well drained and protected from the wind came through the same winter in perfect condition. Many box­ woods were planted on a site which appeared to be well drained. They grew well until 1972, when a wet year left parts of the area quite wet. Boxwoods in this area deteriorated rapidly. Size of plant can also have a bearing on survival. Hollies and boxwoods of the same clone were set out side by side in the nursery. Many plants less than 1 foot high were either killed or partially killed the first winter, while adjacent larger plants 1 to 2 feet high Ilex opaca 'Secrest'. This holly, set showed no sign of winter injury. Established plants out in 1922 from seed collected in Vir­ will often survive climatic extremes, while recently ginia in 1916, has survived temperatures planted shrubs and trees may be killed. to -20° F. -1- Many plants require two or three growing sea­ 0-other plantings. Includes ornamentals sons' to re-establish themselves after transplanting. on campus and around buildings at the Ohio This is especially so with many cultivars of American Agricultural Research and Development Cen­ Holly. Some recently planted shrubs or trees pres­ ter. ently rated as only fair would undoubtedly receive a Number of Plants Set Out: The numeral in rating of good in another year or two. parentheses following plot location is the num­ ber of plants set out. ENVIRONMENT The Secrest Arboretum contains more than 75 Year Planted: The year the plants were set out acres of diversified terrain ranging from areas fairly follows the number of plants set. level to areas with considerable slope. Aspect, mois­ Status: ture, and related site conditions are considerably var­ ( - )-Indicates a plant is in poor condition. ied. Elevations are from 1,000 to 1,100 feet above (+)-Indicates a plant is in fair or average sea level. The predominant soil type is Wooster silt condition. loam which was derived from glacial till. The soil is moderately acid, which is quite suitable for hollies. (++)-Indicates a plant is in good or above The mean annual precipitation is 37 inches. average condition. Extremes of temperature have varied from -24° '-Indicates present height of plant in feet. F. in 1912 to 105° F. in 1918. The Arboretum is "-Indicates present height of plant in inches. located in Plant Hardiness Zone 5, where annual ( 1 )-Numeral in parentheses indicates num- minimum temperatures average between -20° F. ber of plants remaining. and -10° F. The coldest most recent temperature 1973-Year indicates when observation was was -20° F. in 1963. Extremely fluctuating tem­ made. peratures in January and February 1972 caused a F-Failed due to: considerable amount of damage to plants in the Ar­ Fe-local climatic extremes boretum. There were several periods when January Fd-diseases thaws with temperatures between 40° F. and 50° F. Fi-insects were followed within a week's time with temperatures Fm-mechanical injury (mowed off, brok­ falling to zero or below. The most extreme fluctu­ en off by vehicle, etc.) ation came in January 1972, when a maximum tem­ Fp-planting (too small, wrong season, perature of 60° F. was followed 3 days later by a etc.) minimum temperature of -12° F. A good many Fs-site (unfavorable site factors) small boxwoods and hollies were killed outright or Fw-wind, snow or ice breakage suffered considerable killing of leaves and branches. NP-Not present. PLANT DESCRIPTIONS Re-Removed to develop Arboretum or for Plants reported are listed alphabetically by gen­ other reasons. era and species. Common and botanical nomencla­ Ts-Transplanted. ture follows the International Checklist of Cultivated V-Volunteers (usually indigenous) growing !lex ( 1 ) , the 1970 Handbook of Hollies ( 2) , Stand­ in Arboretum. ardized Plant Names ( 3), and Manual of Cultivated All hollies and box have been planted on sites Trees and Shrubs ( 4). No one reference contains all well drained and protected from winds unless other­ plants listed. wise noted. A number of symbols and abbreviations have Example of meaning of lettering and symbols been used to describe the history and present status of following a plant name: each plant. H2. (4)1953, (1)1968. Ts 1970B5. (+) 4'(1)1973 Location: The first letter and number follow­ Four plants set out in Plot H2 in 1953. One ing the name of a listed plant is the plot loca­ plant remaining when checked in 1968. Transplant­ tion or compartment where the plant was set ed in 1970 to Plot B5. Plant presently in fair condi­ out. tion, 4 feet tall, and one plant in place when checked A through T-see map inside front cover. in 1973.

-?- AQUIFOLIACEAE. HOLLY FAMILY

Two different genera of hollies have been set out in the Arboretum: !lex and Nemopanthus. The only holly found growing naturally has been Winterberry (!lex verticillata). American Holly (!lex opaca) is not native in the Wooster area but self-seeded plants are now occasionally found in the vicinity of some of the older plantings.

The first planting of holly was eight American Hollies (!lex opaca) set out in 1922 with seedlings that had been started in the Arboretum nursery in 1916. The best plant in this group of hollies was selected in 1969 and named 'Secrest'. A few hollies were set out in the early 1930's. The first sizable plantings were in 1952 and 1953 when 40 different hollies were set out. Beginning in 1969 a good many hollies have been outplanted each year. To date 188 different species, vari­ eties, hybrids, or cultivars have been planted with 149 still growing in the Arboretum. An additional 89 different kinds are being grown in the Arboretum propagating areas and will be planted outside as soon as the plants are large enough to have a chance of survival.

The Secrest Arboretum is one of the official Holly Display and Experimental Test Centers cooperating with the Holly Society of America, Inc. The Holly Test Garden (Plot 06) was started in 1969. Currently there are 91 different hollies in this planting. An addi­ tional 16 different types have died. The first holly plantings in the Holly Display Garden (Plot T) were set out in the spring of 1972. Eventually a good many of the different hollies that are hardy around Wooster will be planted in the Display Garden.

In general, most of the evergreen hollies in the Arboretum have not grown too well on wet or poorly drained sites. Many small plants have died within one or two years when planted on such a site. They usually die during the winter. An exception is Inkberry (!lex glabra) which is growing rather well on a wet site but has died on a site where there is standing water for long periods. Some of the deciduous hollies such as Winterberry (!lex verticillata) have also made good growth on wet sites.

-3- Status

Ilex aquifolium. D6. (1)1969. Fe 1970 ENGLISH HOLLY. Winter 1969-70 temperatures to -12°F.

!lex aquifolium 'Alcicornis'. H2. (2)1952, (1)1954. Fe 1957 ALCICORNIS ENGLISH HOLLY.

Ilex aquifolium 'Heterophylla'. H2. (2)1952. Fe 1960 CUTLEAF ENGLISH HOLLY.

Ilex aquifolium 'Integrifolia'. H2. (1)1952. Fe 1954 INfEGRIFOLIA ENGLISH HOLLY.

Ilex aquifolium 'Lichtenthalii'. H2. (2)1952. Fe 1963 LICHTENfHAL ENGLISH HOLLY. 1963 temperatures to -20°F.

!lex aquifoliurn, Pride selection. BS. (12)1968. (+) 2'-3'(12)1973 ENGLISH HOLLY. Pride selection. Has survived tempera­ tures to -12°F.

Ilex aquifoliurn 'Pyrarnidalis Compacta'. H2. (2)1952, (1)1961. Fe 1963 DWARF ENGLISH HOLLY. 1963 temperatures to -20°F.

Ilex aquifoliurn 'Scotiea'. H2. (2)1952, (1)1961. Fe 1963 SCOTCH ENGLISH HOLLY. 1963 temperatures to -20°F.

Ilex aquifolium 'Smithii'. H2. (1) 1952. Fe 1954 SMITHS ENGLISH HOLLY.

Ilex aquifolium 'Vantol'. H2. (2)1952, (1)1957. Fe 1963 VANTOL ENGLISH HOLLY. 1963 temperatures to -20°F.

!lex aquifolium 'Whittingtonensis'. H2. (2)1952, (1)1959. Fe 1963" WHITTINGTON ENGLISH HOLLY. 1963 temperatures to -20°F.

English Holly is generally considered to be hardy in Plant Hardiness Zone 7, where average annual minimum temperatures are between 0°F. and 10°F., or Zone 6, where average annual minimum temperatures are from -10°F. to 0°F. Wooster is in Plant Hardiness Zone 5, where average annual minimum temperatures can be expected from -20°F. to -10°F. Five different cultivars survived for 11 years until 1963 when temperatures fell to -20°F. during January and February. All existing English Hollies in the Arboretum were killed. Status

!lex aquifolium x cornuta 'Nellie R. Stevens'. BS. (2) 1967. (+) 2' (2)1973 NELLIE R. STEVENS HOLLY. 06. (1)1969. (+) 3' (1)1973 BS. (1)1969. W~t (-) l' (1)1973 site. Nellie R. Stevens has some winter kill each year but resprouts in spring. Plants had a considerable number of tips winter killed during winter 1969-70 with temperatures down to -12°F. Sensitive to wind.

!lex (aquifolium x cornuta 'Nellie R. Stevens') x aquifolium. 06. (1)1969. (Winter kills, re­ (-) 1'(1)1973 covers in spring) BS. (3)1971. (+) l'-2'(3)1973 BS. (2)1972. (1 Fs wet site) (+) 2 1 (1)1973

!lex (aquifolium x cornuta 'Nellie R. Stevens') x (aquifolium x cornuta 'Edward J. Stevens'). BS. (7)1967, (5)1971, (3)1972. (-) 1 1 (3)1973 Plants that died Fe winter killed.

!lex (aquifolium x cornuta 'Nellie R. Stevens') x cornuta. BS. (S)l967. (Under spread (-) l'-2'(2)1973 Juglans nigra) BS. (1) 1972. Wet site. Fs 1972

!lex (aquifolium x cornuta 'Nellie R. Stevens') x integra. BS. (3)1967. Winter kills and ( -) 4 11 -611 (3)1973 resprouts. 06. (1) 1969. (Winter kill -12°F.) Fe 1970

!lex (aquifolium x cornuta 'Nellie R. Stevens') x leucoclada. BS. (3)1967. ( -) S"-21" (3) 1973 D6. (4)1969. (+) 2'-3'(4)1973 Tips winter kill, resprouts.

!lex aquifolium x pernyi. D6. (1)1969. (Killed by winter winds) Fe 1971

!lex aquifolium x pernyi 'Gable #1'. 06. (1)1969. (++) 4'(1)1973 GABLE #1 AQUIPERN HOLLY. Temperatures of -12°F. had no effect Comes through winter with good color.

Ilex aquifolium x pernyi 'Gable #2'. D6. (1)1969. Fe 1970 GABLE #2 AQUIPERN HOLLY. Killed during winter with -12°F.

-5- Status

Ilex aquifolium x pernyi 'San Jose'. D6. (1)1969. (Keeps color (++) S' (1)1973 SAN JOSE AQUIPERN HOLLY. during winter) BS. (10)1969. (Wet site) (-) 3"-6"(3)1973 06. (1)1972. (+) 2' (1)1973 Has survived tempera­ tures to -12°F.

Ilex x aquipernyi. 06. (1)1969. (Leaves good green all winter) (++) 3' (1)1973 AQUIPERN HOLLY. BS. (1)1969. (Wet site) Fs 1972 BS. (1)1969. (+) 1 1 (1)1973

!lex x aquipernyi 'Brilliant'. 06. (1)1969. Fe 1972 BRILLIANT AQUIPERN HOLLY. Top winter killed every winter.

Ilex beani. H2. (2) 1952. Fe 1961 BEANS HOLLY.

!lex (cassine var. angustifolia x opaca) 'Foster #2'. FOSTER #2 HOLLY. D6. (1)1970. (+) 4 1 (1)1973 BS. (6) 1971. (+) l'-4'(6)1973 06. (1)1971. Fluctuating win­ Fe 1972 ter temperatures. Exposed to winds.

!lex ciliospinosa. BS. (1)1969. Wet site. Fe 1972 06. (1)1969. (+) 3'(1)1973

!lex ciliospinosa x (cornuta x pernyi). BS. (1)1967. (-) 9" (1)1973

Ilex x 'Cock Robin'. BS. (1)1967. (+) 1'(1)1973 COCK ROBIN HOLLY.

!lex cornuta. J37. (3)1932, (1)1939. Fe 1940 CHINESE HOLLY.

Ilex cornuta 'Cartwrights Spiny'. D6. (1)1972. (+) 3' (1)1973 CARTWRIGHTS SPINY CHINESE HOLLY.

!lex cornuta x aquifolium 'Hollowell'. D6. (1)1969. (++) 2' (1)1973 HOLLOWELL HOLLY. BS. (1)1971. (+) 2' (1)1973

-6- Status

Ilex cornuta x ciliospinosa 'Harry Gunning'. BS. (2)1971. (-) 3"-8"(2)1973 HARRY GUNNING HOLLY. Wet site.

Ilex cornuta x ciliospinosa 'Howard Dorset'. BS. (1)1969. Fs Fe 1971 HOWARD DORSET HOLLY. Wet site.

!lex cornuta x ciliospinosa 'William Cowgill'. BS. (2)1971. (-) 7"-14" (2) 1973 WILLIAM COWGILL HOLLY. Wet site.

Ilex cornuta x pernyi 'Dr. Kassab'. D6. (1)1969. Fe 1970 DR. KASSAB HOLLY. Temperatures to -12°F.

Ilex cornuta x pernyi 'Lydia Morris'. D6. (1)1969. ( ++) 4 I ( 1) 19 73 LYDIA MORRIS HOLLY. Average 5" height increase each growing season.

Ilex erenata. J37. (14)1933, (2)1939. Fe 1940 JAPANESE HOLLY. Al. 1937. Fe 1940 H2. 1952. NP 1968 H2. (2)1958. Fe 1961

!lex erenata 'Buxifolia'. BS. (1)1971. ( +) 4' (1) 1973 BOXLEAF JAPANESE HOLLY.

Ilex erenata 'Compacta'. 06. (1)1969. Fe 1971 CCJ.fPACT JAPANESE HOLLY. BS. (2)1971. Fe 1971 Lack of water, dry summer.

Ilex crenata 'Convexa'. H. (30)1967, (4)1971. (-) 21 (4)1973 CONVEXLEAF JAPANESE HOLLY. Killed with Simazine. Winter injury where exposed to winter sun. Sensitive to strong winds.

Ilex crenata 'Glass'. D6. (1)1970. (++) S' (1)1973 GLASS JAPANESE HOLLY. BS. (2)1971. (++) 6' (2)1973 Average height increase has been 12" each year.

-7- Status

Ilex crenata 'Green Thumb'. H2. (2)1958. Fe 1963 GREEN THUMB JAPANESE HOLLY. Temperatures to -20°F.

Il ex crenata 'Hell eri' . 06. (1) 1972. (+) l' (1)197.3 HELLER JAPANESE HOLLY. Sensitive to winds and winter sun.

Ilex crenata 'Hetz'. H2. (2)1952. Has survived tempera­ (++) 7' (2)1973 HETZ JAPANESE HOLLY. tures to -20°F. 0. (5)1965. .3 Re (+) 3' (2)1973 06. (1)1972. (++) 1'(1)1973 One of the hardiest of the Japanese Hollies.

Ilex crenata 'Highlander'. 06. (1) 1970. Foliage green (++) 2' (1)1973 HIGHLANDER JAPANESE HOLLY. during winter. BS. (2)1971. (+) 2'-4'(2)1973

Ilex crenata 'Microphylla'. 06. (1)1969. (++) 2' (1)1973 LITTLELEAF JAPANESE HOLLY. BS. (1)1969. (+) l' (1)1973

!lex crenata 'Miss Muffet'. 06. (1)1971. (++) 2'(1)1973 MISS MUFFET JAPANESE HOLLY. BS. (1)1971. (++) 1'(1)1973 Some winter injury where ex­ posed to wind and winter sun.

Ilex crenata 'Red Lion'. 06. (1)1969. Fm 1971 RED LION JAPANESE HOLLY. BS. (5)1969, (4)1972. (-) 3"-6" (2)1973 Site too wet.

Ilex erenata 'Sentinel'. 06. (1)1971. (++) 6' (1)1973 SENTINEL JAPANESE HOLLY.

Ilex erenata xanthoearpa. Al. (2)1968. (++) 2'(2)1973 YELLOWBERRY JAPANESE HOLLY. 06. (1)1972. (++) 1'(1)1973

Ilex deeidua. H2. (1)1930. Fe 1962 POSSUMHAW. BS. (2) 1971. (Wet site) (++) 3 1 , S' (2)1973

Ilex dubia. H2. (1)1930. Ts 1970 BS. (Wet site) (++) 81 (1)1973

-8- Rooted cuttings of Inkberry (Ilex glabra).

American Holly hedge, 43 years old.

-9- Status

Ilex glabra. Al. (1)1933. Has survived temperatures to -20°F. (++) 10' (1)1973 INKBERRY H2. (S)l9SS, (3)1960, (1)1963. (Too wet, stand- Fs Fm 1968 ing water) BS. (1)1972. (Wet site) (++) 1' (1)1973 D6. (1) 1972. (++) 2' (1)1973

Ilex glabra 'Bob Rappleye'. BS. (2)1967. (Rapid grower) (++) 4' (2)1973 BOB RAPPLEYE INKBERRY. (Wet site) 06. (1)1972. (++) 1'(1)1973

Ilex glabra 'Emerald'. BS. (1)1967. (Wet site) (++) 1' (1)1973 EMERALD INKBERRY.

Ilex glabra 'Ivory Queen'. D6. (1) 1972. (+) 4' (1)1973 IVORY QUEEN INKBERRY.

!lex glabra x coriaceae. BS. (2)1967. (Wet site) (++) 2' (2)1973 INKBERRY

Ilex insignis. 06. (1)1969. Fm 1970

Ilex integra x aquifolium. BS. (3)1967. Under spread (-) S"-14" (3)1973 Juglans nigra.

Ilex integra x aquipernyi. BS. (3)1967. Wet site. (-) 6"(2)1973

Ilex integra x pernyi. BS. (3)1967. (1 lost to moles) (+) 1 1 -2 1 (2)1973

Ilex integra x pernyi 'Accent'. BS. (1) 1970. Winter kil 1. (-) 7" (1) 1973 ACCENT HOLLY. D6. (1) 1971. Winter kill . Fe 1971

Ilex integra x pernyi 'Elegance'. BS. (1) 1970. Fe 1970 D6. (1) 1971. Killed. Fluctuating Fe 1972 ELEGANCE HOLLY. winter temperatures.

Ilex myrtifolia x opaca 'Tanager'. BS. (2)1970. Winter kill (-) 5"-10"(2)1973 TANAGER HOLLY. of tops and tips.

-10- Status

Ilex opaca. Al. (8)1922, (5)1947, (3)1967. Thinning. (++) 25' (1)1973 AMERICAN HOLLY. Male. J37. (8)1922, (6)1931, (6)1933. (++) 22'-32'(3)1973 0. (34)1930. Holly Hedge. Lower branches (++) 20'(34)1973 show damage. E55. (2) 1943. Trees in dense shade, Fe 1970 poor growing. (Severe winds and -12°F. 1970) H2. (7) 1943. Re 1967 L3. (16)1943. Re 1952 0. (4)1948. 3 Re 1960. NP 1964 o. (2) 19SO. (++) 18'-19'(2)1973 o. (5) 19S6. NP 1973 0. (2)19S8. (++) 10 1 -11' (2)1973 0. (1) 1964. Fp 1966 J. (1) 1966. Under spread Juglans nigra. Fp 1967 J. (3)1967. (++) 9'-11' (3)1973 o. (5)1968. (20' tall moved in fall, Fs 1969 exposed to severe winds) 0. (3)1968. (+) 13 1 -21'(3)1973

Ilex opaca 'Albert Pride'. BS. (1)1967. Ts 1972 T3. (+) 3 1 (1)1973 ALBERT PRIDE AMERICAN HOLLY.

!lex opaca 'Alloway'. H2. (3)1953. Re(2)1967. Ts(1)1970 BS. (+) 8, (1)1973 ALLOWAY AMERICAN HOLLY. Has survived temperatures to -20°F.

!lex opaca 'Amy'. D6. (1)1970. (Mowed off 1971, resprouting) (+) 1'(1)1973 AMY AMERICAN HOLLY. BS. (2)1971. (+) 1'(2)1973

!lex opaca 'Angelica'. 06. (1)1969. (++) 7' (1)1973 ANGELICA AMERICAN Fast growing. Heavy set berries 3 years HOLLY. after being set out. Foliage comes through winter in good condition.

!lex opaca 'Arden'. H2. (1)19SS. Ts 1970 BS. (+) 8 1 (1)1973 ARDEN AMERICAN HOLLY. Has survived temperatures to -20°F.

!lex opaca 'Arlene Leach'. BS. (1)1967. Ts 1971 J. (++) 6' (1)1973 ARLENE LEACH AMERICAN BS. (1)1967. Ts 1972 T3. (+) 4' (1)1973 HOLLY. D6. (1)1969. (++) 6 1 (1)1973 BS. (3)1971. (+) l'-2'(3)1973 Averages over a foot a year increase in height growth after becoming estab- 1ished. Foliage comes through winter in good condition.

-11- Status

!lex opaca 'Arthur Pride'. BS. (3)1967. Ts 1972 T3. (+) 4' (2)1973 ARTHUR PRIDE AMERICAN HOLLY.

!lex opaca 'Beautiful Ohio'. 06. (1)1970. (++) 4' (1)1973 BEAUTIFUL OHIO AMERICAN HOLLY. BS. (7)1971. (+) 2'-3' (7)1973 Fast growing.

!lex opaca 'Betsy'. 06. (1)1969. Winters well. (++) 31 (1)1973 BETSY AMERICAN HOLLY.

!lex opaca 'Betty Pride'. BS. (2)1967. Ts 1972 T3. (+) 3 1 (2)1973 BETTY PRIDE AMERICAN HOLLY. 06. (1)1969. (++) 3' (1)1973 J. (1)1970. (++) 5' (1)1973 BS. (1)1971. (+) 1 1 (1)1973 Winters well.

!lex opaca 'Big Berry'. H2. (1)1953. Fe 19S4 BIG BERRY AMERICAN HOLLY.

!lex opaca 'Big Mack'. 06. (1)1971. (++) 31 (1)1973 BIG MACK AMERICAN HOLLY. BS. (2)1971. ( -) l' (1) 1973

!lex opaca 'Big Red'. H2. (3)1953, (2)1963. Re 1967 BIG RED AMERICAN HOLLY. Has survived temperatures to -20°F.

!lex opaca 'Birdsnest'. H2. (3)1953. Killed by temperatures Fe 1963 BIRDSNEST AMERICAN HOLLY. to -20°F. in 1963.

Ilex opaca 'Bittersweet'. H2. (1)1955. Re 1967 BIITERSWEET AMERICAN HOLLY. Has survived temperatures to -20°F.

!lex opaca 'Bountiful'. H2. (3)1953. Ts 1953. (2)Fp 1953. (+) 8' (1)1973 BOUNTIFUL AMERICAN HOLLY. Ts(l)l970 BS. 06. (1)1969. Winters well. (++) 4 1 (1)197.3 BS. (3)1970. (+) 1'-4 1 (.3)1973 Has survived temperatures to -20°F.

!lex opaca 1 Brown #7'. BS. (2)1971. (+) 2' (2)197.3 BROWN #7 AMERICAN HOLLY.

-12- Status

Ilex opaca 'Camelot'. BS . ( 1) 19 7 O. (Wet site) (-) 1'(1)1973 CAMELOT AMERICAN HOLLY. 0. (1)1972. (Very windy site) (+) 6 1 (1)1973

Ilex opaca 'Canary'. H2. (4)19S3, (1)1968. Ts 1970 BS. (+) 4'(1)1973 CANARY AMERICAN HOLLY. J. (2)1967. Winters well on (++) 7'-9'(2)1973 protected site. BS. (3) 1970. (+) 1'(3)1973

Ilex opaca 'Cape Cod'. H2. (3)19S3, (1)1968. Ts(l)l969 D6. (++) 9' (1)1973 CAPE COD AMERICAN HOLLY. D6. (1)1969. (++) 6'(1)1973 BS. ( 4) 1972. (++) 3'-4'(4)197~ Has survived temperatures to -20°F. Tolerates wind. A real tough holly weatherwise. Winters well.

!lex opaca 'Cardinal'. BS. (S)l971. Wet site. (-) 1'(5)1973 CARDINAL AMERICAN HOLLY.

!lex opaca 'Cardinal Hedge'. BS. (1)1971. Wet site. (-) 3 1 (1)1973 CARDINAL HEDGE AMERICAN HOLLY.

Ilex opaca 'Carnival'. BS. (4)1967, (1)1971. (Under Black (-) 1' (1)1973 CARNIVAL AMERICAN HOLLY. Walnut) D6. (1)1969. Winters well. (++) 6 1 (1)1973 BS. (1)1969. Ts(l)l9710. (Very windy (+) 4 1 (1)1973 site) BS. (5 )1972. (+) l'-2'(5)1973 Tolerates winds.

Ilex opaca 'Cave Hill #1'. D6. (1)1969. (++) S' (1)1973 CAVE HILL #1 AMERICAN HOLLY. BS. (8)1971, (7) 1972. (Wet site) (+) 1 1 -4 1 (7)1973

Ilex opaca 'Cave Hill #2'. D6. (1)1971. (++) 2 1 (1)1973 CAVE HILL #2 AMERICAN HOLLY. BS. (2)1971. (Wet site) Fs 1972

Ilex opaca 'Cheerful'. D6. (1)1970. ( ++) 4' (1) 1973 CHEERFUL AMERICAN HOLLY. BS. (2)1971. (++) 3 1 (2)1973 Winters well.

Ilex opaca 'Chesapeake'. D6. (1)1970. (Base girdled) Fi 1971 CHESAPEAKE AMERICAN HOLLY. BS. (2)1971. (+) 2'-3'(2)1973

-13- Status

!lex opaca 'Christmas Bouquet'. H2. (3)19S3, (1)1968. ( ++) 11' (1)1973 CHRIS1MA.S BOUQUET AMERICAN HOLLY. Ts(l)l969 D6. BS. (2)1971. (+) l'-2'(2)1973 Has survived temperatures to -20°F. Winters well.

Ilex opaca 'Christmas Carol'. H2. (1)1955. Ts(l)1970 BS. (+) 11'(1)1973 CHRISTMAS CAROL AMERICAN HOLLY. D6. (1)1969. Winters well. (++) 8' (1)1973 Has survived temperatures to -20°F. Tolerates wind.

Ilex opaca 'Clarissa'. BS. (1)1967. Ts(l)l972 T3. (+) 3' (1)1973 CLARISSA AMERICAN HOLLY. BS. (1)1967. (++) 4' (1)1973

Ilex opaca 'Croonenberg'. H2. (2)19S2, (2)1964. NP 1968 CROONENBERG AMERICAN HOLLY.

Ilex opaca 'Cumberland'. D6. (1)1969. Winters well. ( ++) s' (1)1973 CUMBERLAND AMERICAN HOLLY. J. (1)1969. (++) 5 1 (1)1973 BS. (1)1971. (Wet site) (-) 1'(1)1973

!lex opaca 'Cup Leaf'. H2. ( 4) 1953, (3) 1963, (1) 1968. (+) 12 1 (1)1973 CUP LEAF AMERICAN HOLLY. Ts(l)l970 BS. Has survived temperatures to -20°F.

Ilex opaca 'Doctor Cribbs'. BS. (2)1967. (Under Black Walnut) Fs 1970 DOCTOR CRIBBS AMERICAN HOLLY.

!lex opaca 'Dorothy'. BS. (2)1969. {+) 21 (2)1973 DOROTHY AMERICAN HOLLY.

Ilex opaca 'Dr. S. Edwin Muller'. D6. (1)1970. ~~Yi:rs (++) 4' (1)1973 DR. S. EDWIN MULLER AMERICAN HOLLY. BS. (2)1970. (+) 2'-4'(2)1973

Ilex opaca 'Draper'. 06. (1)1969. (++) 7' (1)1973 DRAPER AMERICAN HOLLY. J. (1)1969. (++) 8 1 (1)1973 Fast growing holly. Winters well.

!lex opaca 'Eleanor'. BS. (2)1971. (Wet site) (+) 1 1 (2)1973 ELEANOR AMERICAN HOLLY.

-14- Status

Ilex opaca 'Elephant Berry'. H2. (3)19S3, (2)1963. (-) 10' (2)1973 ELEPHANT BERRY AMERICAN HOLLY. Ts(2)1969 06. (Site wet and exposed to wind) Has survived temperatures to -20°F. when protected from wind.

Ilex opaca 'Elfin'. H2. (3)19S3, (1)19SS. Fp. Ts(l)l970 BS. (+) 11'(1)1973 ELFIN AMERICAN HOLLY. Has survived temperatures to -20°F.

!lex opaca 'Emily'. D6. (1)1970. Winters well. (++) 4'(1)1973 EMILY AMERICAN HOLLY.

!lex opaca 'Fair Lady'. BS. (2)1967. Ts(2)1972 T3. (+) 3'(2)1973 FAIR LADY AMERICAN HOLLY. BS. (1)1967. Ts(l)l972 J. (++) 4 1 (1)1973

!lex opaca 'Gee'. J. (1)1966. (+) (1)1973 GEE AMERICAN HOLLY. BS. (1)1967. (Under Black Walnut) (-) 1'(1)1973

!lex opaca 'George E. Hart'. 06. (1)1971. (++) 5' (1)1973 GEORGE E. HART AMERICAN HOLLY. BS. (2)1971. (++) 4'-5'(2)1973

!lex opaca 'Gertrude'. BS. (2)1967. (+) 3 1 (2)1973 GERTRUDE AMERICAN HOLLY.

!lex opaca 'Goldie'. D6. (1)1969. (++) 2 1 (1)1973 GOLDIE AMERICAN HOLLY.

Ilex opaca, Grace Hybrid. BS. (1)1967. Ts(l)1972 T3. (+) 4 1 (1)1973 GRACE HYBRID AMERICAN HOLLY. BS. (1)1971. (+) 1'(1)1973

Ilex opaca 'Halcyon'. D6. (1)1971. (Wire imbedded in base) Fm 1971 HALCYON AMERICAN HOLLY. BS. (1)1971. (+) 2'(1)1973

!lex opaca 'Hedgeholly'. H2. (1)1955. NP 1968 HEDGEHOLLY AMERICAN HOLLY. J. (1)1971. (+) 6 1 (1)1973

Ilex opaca 'Howard'. H2. (2)1952, (1)19S7. Fe 1959 HOWARD AMERICAN HOLLY. Winter temperature to -14°F.

-15- Status

Ilex opaca 'Illini'. D6. (1)1970. (Dry summer, lack of water) Fe 1971 ILLINI AMERICAN HOLLY. D6. (1)1972. (++) 3' (1)1973

!lex opaca 'Jekyll'. H2. (3)1953. Fe 1963 JEKYLL AMERICAN HOLLY. 1963 temperatures to -20°F.

!lex opaca 'Jersey Knight'. BS. (5)1967. (++) 3'-4' (5)1973 JERSEY KNIGHT AMERICAN HOLLY. BS. (2)1971. (+) 2' (2)1973

Ilex opaca 'Judy'. D6. (1) 1969. (++) 21 (1)1973 JUDY AMERICAN HOLLY. BS. (2)1971. (+) 3 1 (2)1973

Ilex opaca 'Judy Evans'. BS. (1)1970. (+) l' (1)1973 JUDY EVANS AMERICAN HOLLY.

Ilex opaca 'Kildare'. D6. (1)1969. Winters well. (++) 6 1 (1)1973 KILDARE AMERICAN HOLLY. Fast growing. BS. (1) 1969. (+) 21 (1)1973

!lex opaca 'Klein #1•. D6. (1)1970. (++) S' (1)1973 KLEIN #1 AMERICAN HOLLY. BS. (7)1971. (+) 1'-4'(7)1973

!lex opaca 'Laura'. 06. (1)1970. Fd 1971 LAURA AMERICAN HOLLY. BS. (2)1971. (+) 21 (2)1973

!lex opaca 'Ling'. D6. (1)1969. (++) 4' (1)1973 LING .AMERICAN HOLLY. BS. (1)1969. (+) 31 (1)1973

Ilex opaca 'Ling #2'. BS. (1)1967. Ts(l)l972 T3. (+) 4 1 (1)1973 LING #2 AMERICAN HOLLY. BS. (2)1967. (++) 3'(2)1973

!lex opaca 'Ling Close'. BS. (3)1967. Ts(3)1972 T3. (+) 4 1 (3)1973 LING CLOSE AMERICAN HOLLY.

Ilex opaca 'Magic'. H2. (3)19S3. Fe 1959 MAGIC AMERICAN HOLLY.

!lex opaca 'Makepeace'. 06. (1)1969. Winters well. (++) S' (1)1973 MAKEPEACE AMERICAN HOLLY. Status

!lex opaca 'Manig'. 06. (1) 1969. ( +) 2 I (1) 197 3 MANIG AMERICAN HOLLY. BS. (2)1969. (+) 1 '-4' (2)1973 J. (1)1969. (++) 7' (1)1973 Tolerates winds.

!lex opaca 'Margaret Pride'. BS. (2)1967. (++) 5' (2)1973 MARGARET PRIDE AMERICAN HOLLY.

!lex opaca 'Marta'. BS. (6)1969. (+) 1 '-3' (6)1973 MARTA AMERICAN HOLLY. BS. (5)1970. (Wet site) (-) 1'(5)1973 D6. (1)1970. Fd 1971

!lex opaca 'Mary Gable'. BS. (3)1967. (++) 21 -3 1 (3)1973 MA.RY GABLE AMERICAN HOLLY.

!lex opaca 'Mary Holman'. J. (S)l966. (All under spread Fs 1971 MA.RY HOLMAN AMERICAN HOLLY. of Black Walnut) J. (1)1966. ( +) 6' (1)1973 BS. (3)1967. Ts(3)1972 T3. (+) 3 1 (3)1973 D6. (2)1969. Fast growing. (++) 6' (2)1973 Winters well. BS. (1)1969. Ts 19710. (V~rywindy (+) S' (1)1973 site)

!lex opaca 'Maryland Dwarf'. H2. (3)1953. 1963 winter tem- Fe 1963 MA.RYLAND DWARF AMERICAN HOLLY. peratures to -20°F.

!lex opaca 'Matriarch'. H2. (3)19S3, (1)1963. Ts 1970 BS. (+) 5' (1)1973 MATRIARCH AMERICAN HOLLY. 2 killed, 1 survived -20°F. 1963.

Ilex opaca 'Maxwell Point'. BS. (4)1969, (2)1971. Wet site. (-) l' (2)1973 MAXWELL POINT AMERICAN HOLLY.

!lex opaca 'Menantico'. 06. (1)1972. (+) 3' (1)1973 MENANTICO AMERICAN HOLLY.

Ilex opaca 'Merry Christmas'. H2. (4)19S3, (1)1963. Ts 1970 BS. (+) 91 (1)1973 MERRY CHRISTMAS AMERICAN HOLLY. 3 k!lled, 1 survived -20 F. 1963. D6. (1)1969. (++) 6 1 (1)1973 BS. (2)1969. (++) 4' (2)1973 Tolerates winds. Winters well.

-17- Status

Ilex opaca 'Millville'. 06. (1)1970. Winters well. (++) 3' (1)1973 MILLVILLE AMERICAN HOLLY.

!lex opaca 'Miss White'. BS. (1)1971. (+) 2' (1)1973 MISS WHITE AMERICAN HOLLY. 06. (1)1972. (+) 3 1 (1)1973

!lex opaca 'Mrs. F. J. Close'. D6. (1)1969. (++) 3' (1)1973 MRS. F. J. CLOSE AMERICAN HOLLY. BS. (1)1967. Ts 1971 J. (++) 6' (1)1973 BS. (3)1967. (++) 2'-3 1 (3)1973 BS. (1)1967. Wet site. (-) 1'(1)1973

!lex opaca 'Mrs. Grace Dilatush'. H2. (2)1960, (1)1963. (+) 5' (1)1973 MRS. GRACE DILATUSH AMERICAN Ts 1970 BS. HOLLY. 1 killed, 1 survived 1963 temperature -20°F. D6. (1)1972. (+) 21 (1)1973

!lex opaca 'Mrs. Robb'. BS. (2)1967. (++) 3' (2)1973 MRS. ROBB AMERICAN HOLLY.

!lex opaca 'Mrs. Santa'. H2. (1)1955, (1)1964. NP 1968 MRS. SANTA AMERICAN HOLLY.

Ilex opaca 'Needlepoint'. H2. (3)1953, (1)1968. Ts 1969 D6. (++) 9 1 (1)1973 NEEDLEPOINT AMERICAN HOLLY. Tolerates wind. Has survived temperatures of -20°F.

Ilex opaca 'Old Faithful'. H2. (3)1953, (2)1963. NP 1968 OLD FAITHFUL AMERICAN HOLLY.

Ilex opaca 'Old Heavy Berry'. H2. (3)1953, (1)1968. (+) 5' (1)1973 OLD HEAVY BERRY AMERICAN HOLLY. Ts 1970 BS. HS. 1956. Re 1962 o. 1956. NP 1968

Ilex opaca 'Old Leather Leaf'. H2. (3)1953, (2)1963. NP 1968 OLD LEATHER LEAF AMERICAN HOLLY.

!lex opaca 'Old Science Big Leaf'. BS. (2)1971. (+) 2 1 (2)1973 OLD SCIENCE BIG LEAF AMERICAN HOLLY. D6. (1)1971. (++) 3 1 (1)1973

-is ... Status

t1oq•~ 4.R) Ilex opaca ''Si'~ggR Gold' . D6. (1) 1972. (+) S' (1)1973 ·ORE66U- GOLD AMERICAN HOLLY. 1'1trj IU"J

Ilex opaca 'Perfection'. H2. (3)1953. 2 killed, 1 sur- (+) 6' (1)1973 PERFECTION AMERICAN HOLLY. vived -20°F. 1963. Ts 1970 BS.

Ilex opaca 'Pride Berry'. BS. (3)1967. (+) 1'-3'(3)1973 PRIDE BERRY AMERICAN HOLLY.

Ilex opaca 'Pride Dwarf'. BS. (3)1967. (++) 2 1 (3)1973 PRIDE DWARF AMERICAN HOLLY.

Ilex opaca 'Pride Hedge'. BS. (3)1967. (++) 2' (3)1973 PRIDE HEDGE AMERICAN HOLLY.

Ilex opaca 'Pride of Butler'. BS. (3)1967. Ts(3)1972T3. (+) 1'-3'(3)1973 PRIDE OF BUTLER AMERICAN HOLLY. BS. (1)1969. Ts 1971 O. (++) S' (1)1973 On very windy site. BS. (S)l971. Wet site. (+) 8"-23"(S)l973

Ilex opaca 'Rake Pond'. D6. (1)1972. (+) 2' (1)1973 RAKE POND AMERICAN HOLLY.

Ilex opaca 'Red Flush'. BS. (3)1967. (+) 2 1 -3 1 (3)1973 RED FLUSH AMERICAN HOLLY. BS. (1)1969. Ts 1971 0. Windy site. (+) 6' (1)1973 BS. (6)1971. (+) 21 -3 1 (6)1973

Ilex opaca 'Red Spice'. BS. (1)1967. Ts 1971 J. (++) 6' (1)1973 RED SPICE AMERICAN HOLLY. BS. (3)1971. (+) 2' (3)1973

Ilex opaca 'Ruth'. BS. (3)1967. Ts(3)1972 T3. (+) 4 1 -5 1 (3)1973 RUTH AMERICAN HOLLY.

Ilex opaca 'Santa Claus'. H2. (1)19SS. 1963 temperatures Fe 1963 SANTA CLAUS AMERICAN HOLLY. to -20°F. J. (1)1971. (+) S' (1)1973

-19- Status

!lex opaca 'Secrest'. Al. (1)1922. Heavy set berries (++) 26' (1)1973 SECREST AMERICAN HOLLY. every year. D6. (1) 1971. (++) 4' (1)1973 BS. (5)1971, (3)1972. Wet site. (-) l' (3)1973

Ilex opaca 'Sherman'. D6. (1)1970. (++) 4' (1)1973 SHERMAN AMERICAN HOLLY.

Ilex opaca 'Sleigh Bells'. BS. (3)1967. (+) 2'-3'(3)1973 SLEIGH BELLS AMERICAN HOLLY.

!lex opaca 'Sprig'. H2. (3)1953. 1963 temperatures Fe 1963 SPRIG AMERICAN HOLLY. to -20°F.

Ilex opaca 'St. Mary'. BS. (3)1971. Wet site. (+) 2' (3)1973 ST. MARY AMERICAN HOLLY.

Ilex opaca 'Sunset Glo'. H2. (3)1953, (1)1968. Ts 1969 O. (++) 8' (1)1973 SUNSET GLO AMERICAN HOLLY. Protected location. Has survived temperatures to -20°F.

Ilex opaca 'Thanksgiving'. BS. (3)1967. Ts(3)1972 T3. (+) 4'(3)1973 THANKSGIVING AMERICAN HOLLY.

Ilex opaca 'Torchbearer'. H2. (3)1953, (2)1963. Temperatures (+) 11'(1)1973 TORCHBEARER AMERICAN HOLLY. to -20°F. Ts(l)l970 BS. Ts(l)l969 06. (++) 4'(1)1973

Ilex opaca 'Valentine'. BS. (3)1967. Ts(3)1972 T3. (+) 2 1 -3 1 (3)1973 VALENTINE AMERICAN HOLLY. D6. (1)1969. Winters well. ( ++) 5 1 (1)1973 BS. (1)1971. Wet site. (-) 15"(1)1973

Ilex opaca 'Webber'. BS. (5)1969, (4)1971. Wet site. (-) 5"-17"(4)1973 WEBBER AMERICAN HOLLY.

!lex opaca 'Westcroft'. H2. (1)1955. Ts 1970 BS. (+) 8' (1)1973 WESTCROFT AMERICAN HOLLY. Survived temperatures to -20°F.

Ilex opaca 'Wilfred'. D6. (1)1970. (++) 4 1 (1)1973 WILFRED AMERICAN HOLLY. BS. (2)1971. (++) 3' (2)1973

-20- Status

!lex opaca 'Wyetta'. 06. (1.)1969. Winters well. (++) 8' (1)1973 WYETTA AMERICAN HOLLY. Fast growing. BS. (2)1971. (++) 3' (2)1973

!lex opaca 'Yule'. H2. (1)1955. Ts 1970 BS. (+) 9 1 (1)1973 YULE AMERICAN HOLLY. Survived temperatures to -20°F. 06. (1)1969. Winters well. (++) 4 1 (1)1973

A good many American Hollies will have their leaves "winter burned" when planted on sites exposed to strong winds. These same cultivars will hold the green color in their leaves when planted on sites pro­ tected from the winds. Several American Hollies in Plot D6 are growing quite slowly as they are set out near a planting of Sugar Maple and they are suffering from root competition with the larger Maples. These are the culti­ vars 'Goldie', 'Manig', 'Yule', 'Mrs. F. J. Close', and 'Ling'.

!lex paraguariensis. 1936. Fe 1937 PARAGUAYTEA.

!lex pedunculosa. Al. (1) 193S, (1) 1939. Fe 1947 LONGSTALK HOLLY. H2. (2)1952. Fe 1959 H2. (3)19S8. Fe 1961 H2. (2)1962. Fe 1963 06. (1)1971. Tip killed first winter, (++) 4 1 (1)1973 recovered 1972.

!lex perado 'Baleariea'. H2. (2) 19S2, (1) 1961. Fe 1963 AZORES HOLLY. 1963 temperatures to -20°F.

!lex pernyi, dwarf male. D6. (1)1969. Winter damage first two (++) 1 1 (1)1973 PERNY HOLLY. winters but recovered.

!lex pernyi x aquifolium. BS. (2) 1967. Winter kills back (-) 9"(2)1973 each winter.

!lex pernyi x integra. BS. (1)1967. (-) 1011 (1)1973

!lex pubescens. 06. (1)1969. Winter temperatures to -12°F. Fe 1970

-21- Status

Ilex rotunda. 0. 1927. NP 1964

!lex rugosa x integra. BS. (4)1967. (+) l'-4'(4)1973

!lex serrata. Hll. 1934. Fe 1936 FINETOOTH HOLLY. H2. (1)1937, (1)1955. NP 1968 H2. (2)1964. NP 1968

Ilex sugerokii. 85. (1)1970. Wet site. (-) 7"(1)1973 SUGEROKI HOLLY.

!lex verticillata. J7. (3)1930. Moist site. Has been mowed (++) 4'-5'(3)1973 WINTERBERRY. off in past. H2. (1)1930. Ts(l)l970 D6. Wet site. (+) 9' (1)1973 H2. (1) 1937. Ts (1) 1970 D6. Wet site. (+) 7' (1)1973 D6. (1) 1969. Wet site. (++) 4' (1)1973 J. (6)1967. Moist site. (++) 7'-8' (6)1973 J. (4)1967. Dry site. (++) 3'-4'(4)1973 J. (17)1967. Moist site. Has been mowed (++) 3'-6'(10)1973 off in past. BS. (4)1969. Wet site. (++) 4 1 -5 1 (4)1973 H. (8)1965. Dry site. (++) 8'(8)1973 J. 1964. Growing along banks of creeks v 1973 and on wet sites near creeks.

!lex verticillata is the only holly found growing naturally in the Arboretum.

!lex verticillata 'Chrysocarpa'. H2. (3)1933. Ts(l)l970 D6. (+) 91 (3)1973 YELLOWFRUIT WINTERBERRY. Wet sites.

Nemopanthus mucronata. NS. (1)1966. Re 1968 MOUNTAINHOLLY.

-22- Leaves and flower buds of Buxus sempervirens 'Asheville'.

Buxus sempervirens 'Asheville', a box which has survived temperatures to -20° F. -23- BUXACEAE. BOX FAMILY

Three different genera in the Box Family have been set out in the Arboretum or on the Campus of the Ohio Agricultural Research and Development Center: Buxus, Pachysandra, and Sarcococca. None of the plants are native to the Wooster area. The first box to be set out in the Arboretum was Asheville Common Box (Buxus sempervirens 'Asheville'). During 1923, six specimens of this cultivar were planted and have grown well ever since. Some 82 different kinds of boxwood have been set out since the initial plantings in 1923 and 54 of these are still alive. Seventeen of those remaining are not named and as they are not growing too well and are quite small they have not been included in the following listing.

Status

Buxus 14412. BS. (1) 1969. Site wet 1972. Top winter killed (+) 18"(1)1973 but recovered. Grew well until winter 1971-72. Fluctuating temperatures.

Buxus 16475. BS. (1)1969. Site wet. Winter kills, resprouts. (-) 6" (1)1973

Buxus 17087. BS. (1)1969. Site wet. Top winter killed 1972 (+) 11"(1)1973 but recovered. Grew well until winter 1971-72. Fluctuating temperatures.

Buxus 24424. BS. (1)1969. Site wet. Top winter killed 1972. (-) 2" (1) 1973 Grew well until winter 1971-72. Fluctuating temperatures.

Buxus harlandi. Al. (2)1936, (1)1939. Fe 1940 HARLANDS BOX. BS. (1)1969. Temperatures to -12°F. Fe 1970

Buxus microphylla. BS. (4)1969, (3)1970, (2)1971. (-) 3"-5" (2) 1973 LITTLELEAF BOX. Site wet. Temperatures to -12°F.

Buxus microphylla 'Compacta Kingsville Dwarf'. BS. (1)1967. (++) 5"(1)1973 KINGSVILLE DWARF LITTLELEAF BOX. BS. (1)1969. Winds, Fs 1971 wet site.

Buxus microphylla 'Green Pillow'. BS. (1)1967. (++) 611 (1)1973 GREEN PILLOW LITTLELEAF BOX.

-24- Status

Buxus microphylla japonica. A2. (2)19S8. Has survived tempera- (++) 4' (2)1973 JAPANESE LITTLELEAF BOX. tures to -20°F. BS. (1)1969. Temperatures to -12°F. Fp Fs 1970 Plant l' high. Not established.

Buxus microphylla japonica 'Morris Fastigiata'. BS. (1)1969. Fe 1970 MORRIS UPRIGHT LITTLELEAF BOX. Temperatures to -12°F.

Buxus microphylla 'Korean Garden'. BS. (1)1967. Fe 1968 KOREAN GARDEN LITTLELEAF BOX.

Buxus microphylla koreana. Al. (3)1931, (1)1967. Re 2. Ts(l)l968 BS. (+) 8' (1)1973 KOREAN LITTLELEAF BOX. Has survived temperatures to -20°F. Has not completely recovered from Ts. BS. (1)1969. Wet site. Plant under 1' Fs 1971 when set.

Buxus microphylla koreana 'Wintergreen'. BS. (20)1972. (+) 1'(20)1973 WINTERGREEN KOREAN BOX.

Buxus microphylla (Largeleaf Asiatic Clone). BS. (6)1967. (+) 4'-5' (6)1973 Did exceptionally well. Green all winter, until winter 1972-73 leaves reddish.

Buxus microphylla 'Morris Medium Dwarf'. BS. (1)1969. (+) 6"(1)1973 MORRIS MEDIUM DWARF LITTLELEAF BOX.

Buxus microphylla 'Morrison Garden'. BS. (1)1969. (+) 10" (1)1973 MORRISON GARDEN LITTLELEAF BOX.

Buxus microphylla sinica. BS. (1)1967. Wet site. Windy. Fe 1971 CHINESE LITTLELEAF BOX.

Buxus sempervirens. o. (9)1956, (6)1970. (++) 4'-5' (6)1973 COMMON BOX. o. (4)1964. NP 1972

Buxus sempervirens 'Anderson 350-35'. BS. (1)1967. Fe 1969 ANDERSON 350-35 COMMON BOX. BS. (1)1969. Fe 1971

-25- Status

Buxus sempervirens 'Anderson 351-3S'. BS. (1)1967. (++) 3' (1)1973 ANDERSON 351-35 COMMON BOX.

Buxus sempervirens 'Anderson 789-34'. BS. (1) 1967. Fe 1968 ANDERSON 789-34 COMMON BOX.

Buxus sempervirens 'Angustifolia'. BS. (1)1967. Fe 1971 WILLOW COMMON BOX. BS. (3)1969, (2)1971, (1)1972. (+) 9"(1)1973 Tops winter kill each winter.

Buxus sempervirens 'Arborescens'. BS. (1)1969. (+) 8"(1)1973 TRUETREE COMMON BOX.

Buxus sempervirens 'Argenteo Variegata'. BS. (1) 1969. Washed out Fw 1969 SILVER COMMON BOX. in flood.

Buxus sempervirens 'Asheville'. A2. (6)1923, (S)l930. (++) 6'-7' (5)1973 ASHEVILLE COMMON BOX. O. (75)1950. Hedge. (++) 3 1 -4 1 ,8 1 (75)1973 Exposed to wind. 0. (2)1950. Re 1966 0. (2)1950. Re. Concrete Re walk. 0. (2)1950. Fm 1972 0. (2)1950. (++) 4'-5'(2)1973 0. (2)1956. Replaced with Re 1960 Taxus. This cultivar holds a good green color in the foliage throughout the winter. Tolerates wind. Has survived temperatures to -20°F.

Buxus sempervirens 'Aurea'. BS. (2)1969. Temperatures to -12°F. Fe 1970 GOLDEN COMMON BOX.

Buxus sempervirens 'Bosley'. BS. (1)1967. ( +) 14" (1) 1973 BOSLEY COMMON BOX.

Buxus sempervirens 'Colprit #4'. BS. (1)1969. (Top winter kill ( +) 8 11 (1)1973 COLPRIT #4 COMMON BOX. 1971-72)

#'/ ICreJlf'~//().. Buxus .&em~ e!'Vu·ons ' Cur 1ey Locks ' . BS. (1)1967. (++) 2 1 (1)1973 CURLEY LOCKS G~fMQN BOX. J../tfkk~f

-26- Status

Buxus sempervirens 'Fastigiata'. BS. (1)1967. (++) 3' (1)1973 COLUMNAR COMMON BOX.

Buxus sempervirens 'Handsworth'. BS. (1)1969. Wet site. (-) 6"(1)1973 HANDSWORTH COMMON BOX. Top winter kills and resprouts.

Buxus sempervirens 'Hardwick'. BS. (1)1969. Wet site. (-) 2"(1)1973 HARDWICK COMMON BOX. Top winter kill each year.

Buxus sempervirens 'Joe Gable'. BS. (1) 1967. Fs Fe 1970 JOE GABLE COMMON BOX. Temperatures to -12°F.

Buxus sempervirens 'Latifolia Macrophylla'. BS. (1)1969. Wet Fe 1971 site.

Buxus sempervirens (Mulsted selection). BS. (2)1967. (++) S'(2)1973 COMMON BOX, Mulsted selection. Foliage remains green all win­ ter, rapid growing. Has sur­ vived temperatures to -12°F.

Buxus sempervirens 'Myosotidifolia'. BS. (1) 1967. Fe 1972 FORGETMEMOTLEAF COMMON BOX.

Buxus sempervirens 'Myrtifolia'. BS. (1)1967. Fe 1970 MYRTLELEAF COMMON BOX.

Buxus sempervirens 'Nana'. BS. (1)1969. Fe 1970 DWARF COMMON BOX. Temperatures to -12°F.

Buxus sempervirens 'Nish'. BS. (1)1969. Fe 1970 NISH COMMON BOX. Temperatures to -12°F.

Buxus sempervirens 'Northern N. Y.'. BS. (1)1967. (+) 10"{1)1973 NORTHERN N. Y. COMMON BOX.

Buxus sempervirens 'Novieularis'. BS. (1)1967. (++) 3 1 (1)1973 NOVICULARIS COMMON BOX.

-27- Status

Buxus sempervirens 'Pendula'. BS. (1)1967. (++) 3 1 (1)1973 WEEPING COMMON BOX.

Buxus sempervirens 'Pyramidata'. BS. (3)1969, (1)1971. (-) 3"(1)1973 PYRAMID COMMON BOX. Wet site.

Buxus sempervirens 'Rotundifolia'. Al. (2)1930. Has survived (++) 6'-7'(2)1973 ROUNDLEAF COMMON BOX. temperatures to -20°F. BS. (1)1967. Under 1' high. Fp Fe 1969 Holds green color through most of winter. Off color by early spring. Soon becomes green with warm weather.

Buxus sempervirens 'Salicifolia'. BS. (1)1967. (+) 1'(1)1973 WILLOWLEAF COMMON BOX.

Buxus sempervirens 'Schmidt'. BS. (2)1969. (++) 2'-3'(2)1973 SCHMIDT COMMON BOX.

Buxus sempervirens 'Spreading'. BS. (1)1969. Fe 1970 SPREADING COMMON BOX. Temperatures to -12°F.

Buxus sempervirens 'Suffruticosa'. Al. (S)l927, (2)1968. (++) 7'-8' (2)1973 TRUEDWARF COMMON BOX. Has survived temperatures to -20°F. Holds green color all winter. Some leaves off color at -12°F.

Buxus sempervirens 'Vardar Valley'. BS. (2)1967, (1)1972. (++) 2' (1)1973 VARDAR VALLEY COMMON BOX. BS. (1)1969. Under l' high. (-) 7"(1)1973 Plants failed or did poorly on wet sites, excellent on good sites.

Buxus sempervirens 'Varifolia'. BS. (1)1967. (++) 3 1 (1)1973

Buxus sempervirens 'Woodland'. BS. (1)1969. Wet site. Fs Fe 1971 WOODLAND COMMON BOX.

Buxus sempervirens 'Wooster'. o. (1) 1956. Re 1961 WOOSTER COMMON BOX. BS. (2) 1967. ( ++) 1 f (2) 1973

-28- Status

Pachysandra terminalis. o. (100)1916. (North side of building) ( ++) (100) 1973 JAPANESE PACHYSANDRA. o. (100)1950. (North side of building) ( ++) (100) 1973 JAPANESE SPURGE. 0. (800)1969. (North side of building) (++) (800)1973 o. (50)1971. (Under large Yews) (+) (50)1973 0. (50)1972. (North side of building) (+) (50)1973

Sarcococca hookeriana. O. 1933. NP 1958 HIMALAYA SARCOCOCCA.

-29- SELECTED REFERENCES

(1) Eisenbeiss, G. K. and Dudley, T. R. 1973. International Checklist of Cultivated !lex, Part I, !lex opaca. National Arboretum Contri­ bution No. 3. Agricultural Research Service, U. S. Department of , Washington, D. C.

(2) Hansell, D. E., Guest Editor, and Dudley, T. R., and Eisenbeiss, G. K., Technical Editors. 1970. Handbook of Hollies. Amer. Hort. Mag. 49(4):150-334.

(3) Kelsey, Harlan P. and Dayton, William. 1942. Standardized Plant Names. 2nd Edition. J. Horace Macfarland Company, Harrisburg, Pa.

(4) Rehder, Alfred. 1940. Manual of Cultivated Trees and Shrubs. 2nd Edition. The MacMillan Company, Boston, Mass.

-30- INDEX OF COMMON NAMES

American Holly Ilex opaca Albert Pride American Holly !lex opaca 'Albert Pride' Alloway American Holly !lex opaca 'Alloway' Amy American Holly !lex opaca 'Amy' Angelica American Holly !lex opaca 'Angelica' Arden American Holly !lex opaca 'Arden' Arlene Leach American Holly Ilex opaca 'Arlene Leach' Arthur Pride American Holly !lex opaca 'Arthur Pride' Beautiful Ohio American Holly !lex opaca 'Beautiful Ohio' Betsy American Holly !lex opaca 'Betsy' Betty Pride American Holly !lex opaca 'Betty Pride' Big Berry American Holly Ilex opaca 'Big Berry' Big Mack American Holly Ilex opaca 'Big Mack' Big Red American Holly Ilex opaca 'Big Red' Birdsnest American Holly !lex opaca 'Birdsnest' Bittersweet American Holly Ilex opaca 'Bittersweet' Bountiful American Holly Ilex opaca 'Bountiful' Brown #7 American Holly Ilex opaca 'Brown #7' Camelot American Holly Ilex opaca 'Camelot' Canary American Holly Ilex opaca 'Canary' Cape Cod American Holly Ilex opaca 'Cape Cod' Cardinal American Holly Ilex opaca 'Cardinal' Carnival American Holly Ilex opaca 'Carnival' Cave Hill #1 American Holly Ilex opaca 'Cave Hill #1' Cave Hill #2 American Holly Ilex opaca 'Cave Hill #2' Cheerful American Holly Ilex opaca 'Cheerful' Chesapeake American Holly Ilex op~ca 'Chesapeake' Christmas Bouquet American Holly Ilex opaca 'Christmas Bouquet' Christmas Carol American Holly !lex opaca 'Christmas Carol' Clarissa American Holly !lex opaca 'Clarissa' Croonenberg American Holly !lex opaca 'Croonenberg' -Cumberland American Holly !lex opaca 'Cumberland' Cup Leaf American Holly !lex opaca 'Cup Leaf' Doctor Cribbs American Holly !lex opaca 'Doctor Cribbs' Dorothy American Holly Ilex opaca 'Dorothy' Dr. S. Edwin Muller American Holly Ilex opaca 'Dr. S. Edwin Muller' Draper American Holly Ilex opaca 'Draper' Eleanor American Holly Ilex opaca 'Eleanor' Elephant Berry American Holly !lex opaca 'Elephant Berry' Elfin American Holly !lex opaca 'Elfin' Emily American Holly Ilex opaca 'Emily' Fair Lady American Holly Ilex opaca 'Fair Lady' Gee American Holly !lex opaca 'Gee' George E. Hart American Holly !lex opaca 'George E. Hart' Gertrude American Holly !lex opaca 'Gertrude' Goldie American Holly Ilex opaca 'Goldie' Grace Hybrid American Holly Ilex opaca, Grace Hybrid Halcyon American Holly Ilex opaca 'Halcyon' Hedgeholly American Holly Ilex opaca 'Hedgeholly' Howard American Holly Ilex opaca 'Howard'

-31- American Holly (Continued) Illini American Holly Ilex opaca 'Illini' Jekyll American Holly Ilex opaca 'Jekyll' Jersey Knight American Holly Ilex opaca 'Jersey Knight' Judy American Holly Ilex opaca 'Judy' Judy Evans American Holly Ilex opaca 'Judy Evans' Kildare American Holly Ilex opaca 'Kildare' Klein #1 American Holly !lex opaca 'Klein #1' Laura American Holly Ilex opaca 'Laura' Ling American Holly Ilex opaca 'Ling' Ling #2 American Holly !lex opaca 'Ling #2' Ling Close American Holly !lex opaca 'Ling Close' Magic American Holly Ilex opaca 'Magic' Makepeace American Holly Ilex opaca 'Makepeace' Manig American Holly Ilex opaca 'Manig' Margaret Pride American Holly Ilex opaca 'Margaret Pride' Marta American Holly !lex opaca 'Marta' Mary Gable American Holly !lex opaca 'Mary Gable' Mary Holman American Holly !lex opaca 'Mary Holman' Maryland Dwarf American Holly !lex opaca 'Maryland Dwarf' Matriarch American Holly !lex opaca 'Matriarch' Maxwell Point American Holly !lex opaca 'Maxwell Point' Menantico American Holly !lex opaca 'Menantico' Merry Christmas American Holly !lex opaca 'Merry Christmas' Millville American Holly Ilex opaca 'Millville' Miss White American Holly !lex opaca 'Miss White' Mrs. F. J. Close American Holly !lex opaca 'Mrs. F. J. Close' Mrs. Grace Dilatush American Holly !lex opaca 'Mrs. Grace Dilatush' Mrs. Robb American Holly Ilex opaca 'Mrs. Robb' Mrs. Santa American Holly Ilex opaca 'Mrs. Santa' Needlepoint American Holly !lex opaca 'Needlepoint' Old Faithful American Holly Ilex opaca 'Old Faithful' Old Heavy Berry American Holly Ilex opaca 'Old Heavy Berry' Old Leather Leaf American Holly Ilex opaca 'Old Leather Leaf' Old Science Big Leaf American Holly Ilex opaca 'Old Science Big Leaf' Oregon Gold American Holly !lex opaca 'Oregon Gold' Perfection American Holly !lex opaca 'Perfection' Pride Berry American Holly !lex opaca 'Pride Berry' Pride Dwarf American Holly !lex opaca 'Pride Dwarf' Pride Hedge American Holly !lex opaca 'Pride Hedge' Pride of Butler American Holly !lex opaca 'Pride of Butler' Rake Pond American Holly !lex opaca 'Rake Pond' Red Flush American Holly !lex opaca 'Red Flush' Red Spice American Holly !lex opaca 'Red Spice' Ruth American Holly Ilex opaca 'Ruth' Santa Claus American Holly !lex opaca 'Santa Claus' Secrest American Holly !lex opaca 'Secrest' Sherman American Holly !lex opaca 'Sherman' Sleigh Bells American Holly !lex opaca 'Sleigh Bells' Sprig American Holly !lex opaca 'Sprig' St. Mary American Holly !lex opaca 1 St. Mary' Sunset Glo American Holly Ilex opaca 'Sunset Glo'

-32 .. American Holly (Continued) Thanksgiving American Holly !lex opaca 'Thanksgiving' Torchbearer American Holly !lex opaca 'Torchbearer' Valentine American Holly !lex opaca 'Valentine' Webber American Holly !lex opaca 'Webber' Westcroft American Holly !lex opaca 'Westcroft' Wilfred American Holly !lex opaca 'Wilfred' Wyetta American Holly !lex opaca 'Wyetta' Yule American Holly !lex opaca 'Yule'

Aquipern Holly !lex aquifolium x pernyi Brilliant Aquipern Holly !lex x aquipernyi 'Brilliant' Gable #1 Aquipern Holly !lex aquifolium x pernyi 'Gable #1' Gable #2 Aquipern Holly !lex aquifolium x pernyi 'Gable #2' San Jose Aquipern Holly !lex aquifolium x pernyi 'San Jose'

Azores Holly !lex perado 'Balearica' Balearic Azores Holly !lex perado 'Balearica' Beans Holly Ilex beani

Box Buxus Boxwood Buxus

Cherry Holly !lex pedunculosa

Chinese Holly !lex cornuta Cartwrights Spiny Chinese Holly !lex cornuta 'Cartwrights Spiny'

Common Box Buxus sempervirens Anderson 350-35 Common Box Buxus sempervirens 'Anderson 350-35' Anderson 351-35 Common Box Buxus sempervirens 'Anderson 351-35' Anderson 353-35 Common Box Buxus sempervirens 'Vardar Valley' Anderson 789-34 Common Box Buxus sempervirens 'Anderson 789-34' Asheville Common Box Buxus sempervirens 'Asheville' Bosley Common Box Buxus sempervirens 'Bosley' Colprit #4 Common Box Buxus sempervirens 'Colprit #4' Columnar Common Box Buxus sempervirens 'Fastigiata' Curley Locks Common Box Buxus sempervirens 'Curley Locks' Dwarf Common Box Buxus sempervirens 'Nana' English Common Box Buxus sempervirens 'Suffruticosa' Forgetmenotleaf Common Box Buxus sempervirens 'Myosotidifolia' Golden Common Box Buxus sempervirens 'Aurea' Handsworth Common Box Buxus sempervirens 'Handsworth' Hardwick Common Box Buxus sempervirens 'Hardwick' Joe Gable Common Box Buxus sempervirens 'Joe Gable' Mulsted Selection Common Box Buxus sempervirens, Mulsted selection Myrtleleaf Common Box Buxus sempervirens 'Myrtifolia'

-33- Common Box (Continued) Nish Common Box Buxus sempervirens 'Nish' Northern N. Y. Common Box Buxus sempervirens 'Northern N. Y.' Novicularis Common Box Buxus sempervirens 'Novicularis' Pyramid Common Box Buxus sempervirens 'Pyramidata' Roundleaf Common Box Buxus sempervirens 'Rotundifolia' Schmidt Common Box Buxus sempervirens 'Schmidt' Silver Common Box Buxus sempervirens 'Argenteo Variegata' Spreading Common Box Buxus sempervirens 'Spreading' Truedwarf Common Box Buxus sempervirens 'Suffruticosa' Truetree Common Box Buxus sempervirens 'Arborescens' Vardar Valley Common Box Buxus sempervirens 'Vardar Valley' Weeping Common Box Buxus sempervirens 'Pendula' Willow Common Box Buxus sempervirens 'Angustifolia' Willowleaf Conunon Box Buxus sempervirens 'Salicifolia' Woodland Common Box Buxus sempervirens 'Woodland' Wooster Common Box Buxus sempervirens 'Wooster' Dr. Kassab Holly Ilex cornuta x pernyi 'Dr. Kassab' English Holly Ilex aquifolium Alcicornis English Holly Ilex aquifolium 'Alcicornis' Cutleaf English Holly Ilex aquifolium 'Heterophylla' Dwarf English Holly Ilex aquifolium 'Pyramidalis Compacta' Integrifolia English Holly Ilex aquifolium 'Integrifolia' Lichtenthal English Holly Ilex aquifolium 'Lichtenthalii' Pride Selection English Holly Ilex aquifolium, Pride selection Scotch English Holly Ilex aquifolium 'Scotica' Smiths English Holly Ilex aquifolium 'Smithii' Vantol English Holly Ilex aquifolium 'Vantol' Whittington English Holly Ilex aquifolium 'Whittingtonensis' Finetooth Holly Ilex serrata Foster #2 Holly Ilex (cassine var. angustifolia x opaca) 'Foster #2' Harlands Box Buxus harlandi Harry Gunning Holly Ilex cornuta x ciliospinosa 'Harry Gunning' Himalaya Sarcococca Sarcococca hookeriana Hollowell Holly Ilex cornuta x aquifolium 'Hollowell' Holly Ilex Howard Dorset Holly Ilex cornuta x ciliospinosa 'Howard Dorset' Inkberry Ilex glabra Bob Rappleye Inkberry Ilex glabra 'Bob Rappleye' Emerald Inkberry Ilex glabra 'Emerald' Ivory Queen Inkberry Ilex glabra 'Ivory Queen'

-34- Japanese Holly !lex crenata Boxleaf Japanese Holly Ilex crenata 'Buxifolia' Compact Japanese Holly Ilex crenata 'Compacta' Convexleaf Japanese Holly !lex crenata 'Convexa' Glass Japanese Holly !lex crenata 'Glass' Green Thumb Japanese Holly !lex crenata 'Green Thumb' Heller Japanese Holly !lex crenata 'Helleri' Hetz Japanese Holly !lex crenata 'Hetz' Highlander Japanese Holly !lex crenata 'Highlander' Littleleaf Japanese Holly !lex crenata 'Microphylla' Miss Muffet Japanese Holly !lex crenata 'Miss Muff et' Red Lion Japanese Holly Ilex crenata 'Red Lion' Sentinel Japanese Holly Ilex crenata 'Sentinel' Yellowberry Japanese Holly Ilex crenata xanthocarpa Japanese Pachysandra Pachysandra terminalis Japanese Spurge Pachysandra terminalis Littleleaf Box Buxus microphylla Chinese Littleleaf Box Buxus microphylla sinica Green Pillow Littleleaf Box Buxus microphylla 'Green Pillow' Japanese Littleleaf Box Buxus microphylla japonica Kingsville Dwarf Littleleaf Box Buxus microphylla 'Compacta Kingsville Dwarf' Korean Garden Littleleaf Box Buxus microphylla 'Korean Garden' Korean Littleleaf Box Buxus microphylla koreana Largeleaf Asiatic Clone Box Buxus microphylla (Largeleaf Asiatjc Clone) Morris Medium Dwarf Littleleaf Box Buxus microphylla 'Morris Medium Dwarf' Morris Upright Littleleaf Box Buxus microphylla japonica 'Morris Fastigiata' Morrison Garden Littleleaf Box Buxus microphylla 'Morrison Garden' Wintergreen Littleleaf Box Buxus microphylla koreana 'Wintergreen' Longstalk Holly !lex pedunculosa tydia Morris Holly !lex cornuta x pernyi 'Lydia Morris' Mountainholly Nemopanthus mucronata Nellie R. Stevens Holly !lex aquifolium x cornuta 'Nellie R. Stevens' Paraguaytea !lex paraguariensis Perny Holly !lex pernyi Possumhaw !lex decidua

Sugeroki Holly II ex sugerokii William Cowgill Holly !lex cornuta x ciliospinosa 'William Cowgill' Winterberry !lex verticillata Yellowfruit Winterberry Holly Ilex verticillata 'Chrysocarpa'

-35- ... L

130 120 110 100 90

0 40

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30l::l:~~~~~~

MAP OF CLIMATIC ZONES I-VII Secrest Arboretum, Wooster, Ohio Approximate Range of Average Annual Minimum Temperatures for Each Zone Latitude 40° 47' N ZONE I Below 500 F. ZONE V -20° F. to -10° F. Longitude 810 56' W ZONE II -soo F. to -400 F. ZONE VI -10° F. to o° F. ZONE II I -400 F. to -300 F. ZONE VII o° F. to 10° F. ZONE IV -300 F. to -200 F. 7~ State '7lt tAe ~~ /o'i A~t ~~ad '!)egd~

...... ~ ... ,,,.,,,..' ... ,.,.,...... ,,.,_.. ~

..,. .... -.\ MAHONING CO. FARM.· ··· ·····- MUCK tt , ~RA.N~H , ... WOOSTER ~ CENTER , HEADQUARTE,RS ····' · ... L.. ,,..i .. ;

e POMERENE ~OREST LAB9R.A 10~7 J"- ~ COLUMBUS \ ~ °'": {"""''. ~ THE OHIO ST ATE ; EASTERN OHIO RESOURCE --- .. '--··; DEVELOPMENT CENTER UNIVERSITY C~ ...... ·---· -- ··.w ... ~ e L~

Ohio's major soil types and climatic Jackson Branch, Jackson, Jackson Coun­ conditions are represented at the Re­ ty: 344 acres search Center's 13 locations. Thus, Cen­ Mahoning County Farm, Canfield: 275 ter scientists can make field tests under acres conditions similar to those encountered Muck Crops Branch, Willard, Huron Coun­ by Ohio farmers. ty: 15 acres Research is conducted by 15 depart­ North Central Branch, Vickery, Erie Coun­ ments on more than 6500 acres at Center ty: 335 acres headquarters in Wooster, nine branches, Northwestern Branch, Hoytville, Wood Green Springs Crops Research Unit, Pom­ County: 247 acres erene Forest Laboratory, and The Ohio Pomerene Forest, Laboratory, Keene State University. Township, Coshocton County: 227 Center Headquarters, Wooster, Wayne acres Co unty: 1953 acres Southeastern Branch, Carpenter, Meigs Eastern Ohio Resource Development Cen­ County: 330 acres ter, Caldwell, Noble County: 2053 Southern Branch, Ripley, Brown County: acres 275 ·acres Green Springs Crops Research Unit, Green Western Branch, South Charleston, Clark Springs, Sandusky County: 26 acres County: 428 acres