THE AMERICAN GARDENER May/June 199 7 the AMERICAN Members' GARDENER EDITOR KATHLEEN FISHER
Total Page:16
File Type:pdf, Size:1020Kb
REVELING IN ROSES: Tough in Texas, Modern in Maryland ERICAN A Publication of the American Horticultural Society May/June 1997 $3.95 "f'I ;) CELEBRATING OUR DIAMOND ANNIVERSARY -CJ .-- 75 Great Plants for American Gardens LrI I"- ~ -C) .-- ASIA-U.S. RELATIONS How Our Plant Families Were Reunited LrI 00 ~ MINI-RHODODENDRONS These Can Take a Maxi-Chill I"- 0 The WaterFarm™ generates prolific yields in small spaces. The WaterFarm comes complete with Reservoir, Gr0wChamber, GROROX™ clay pebbles, II Ovac pump plus FloraMagic hydropoflic nutrient. The WaterFarm is lOx I0 inches by IS il'lches tall. Choose between TerraCotta or Evergreen trim color. T~ performance at an economy price. The PowerGrower™ is ideal for one large plant, or several small plall\ts. lihe PowerGrower comes com plete with Reservoir, Grow Chamber, GROROX™ clay peb bles, I IOvac pump plus FloraMagic hydroponic nutrient. Power Grower is 16 inches in diameter by 14 inches tall. The optional Controller Module enables you to connect numerous WaterFarms or PowerGrowers together for larger installations. AeroFloTM -the hydropenic system of the future ... today! AeroFlo TM is a true "water-culture" system, plant FOots are suspended in a rapidly flOWing stream of oxygen-infused nutrient. It offers innovations which are not available in any other hydroponic system. Strength, simplicity, expand ability, and low cost over time make the AeroFlo unsurpassed for performance and value. li;iiiiijiii~1 AeroFloand fills an24 area supports of 2 feet 24 plantsby 5 ; feet. This is our most popular small mode l. AeroFlo 40 supports 40 plants and fills an area of 6 feet by 3 Marmande variety tomatoes are grown at our facility in Southern France to test feet. This model is expandable to adaptability of this famous French variety to our AeroFlo hydroponic system .... 48 plant sites and I I feet in the results are I length. ~li~~~~!gl~~~~~~AeroFlomodel for80 ishome our mostgardening popular. It supports 80 plants and fills an J area of 7 feet by 5 feet. With the conversion option it can fill an area of 7 feet by I 0 feet. Aero Flo ™ systems are available in many sizes ranging from 2 feet by 5 feet, up to commercial units designed to fill large greenhouse complexes. To order or to request our catalog featuring a lar~e selection of products for home, education & commercial farming, or for the location of a distributor in your area: call 800 374 9376 The key to great flavor in hydroponic crops is superior fertilizer. Our "Flora .. GENERAL -- Advanced Nutrient System TM" is recognized world-wide for cultivation of gourmet quality crops. Fruits and vegetables grown with our nutrients have ~ HYDROPONICS been served at leading restaurants in the San Francisco area. P.O. Box 1576, Sebastopol CA 95473 internet: ht1:n:/'W¥iW.ller,nv'drc).CC)m l Phone 707 824 9376 Fax 707 824 9377 e-mail: © oepyri@ht 1997 General i'lyaropenios co n t e n t s Volume 76, Number 3 May/June 1997 . .. Commentary 4 Old as the Hills. Tough as a Boot 26 by Linda Thornton Members' Forum 5 Lone Star State weather is brutal) but heirloom N aturallandscapes) magnifier lenses. roses can take it. Offshoots 17 Kudzu: weed or wonder plant? Thoroughly Modern Williams 32 by Kerry Hart . Mail-Order Explorer 18 This independent hybridizer would love to achzeve No pigeonhole for Tripple Brook. an even more lasting (Peace). Gardeners' Information Service 19 Rugged Little Rhodies 39 Paulownias) tree tomatoes) and artichokes. by Gerald Taaffe . Conservationist's Notebook 20 Pint-sized rhododendrons enrzch a Canadzan garden. Garlic mustard: space invader? My American Cousin 44 Urban Gardener 22 by Judy Glattstein Public spaces abloom in Minneapolis. How we discovered that Plants and Your Health 24 plants half a world away Scaring off mosquitoes. were kissing kin to our own. Book Reviews 51 Passionflowers) salvias) Thoreau) gardening goofs. Regional Happenings 58 Camellia garden makeover, historic-tree tussle. Pronunciations 63 HAPPY 75TH ANNIVERSARY. AHS! 75 Great Plants for On the cover: Our native blazing stars or gayfeathers American Gardens 6 (Liatris spp.) have become favorites both for inf~rmal The very best? For everywhere? We meadow gardens and for making a strong ver~zcal wouldn)t dare. But AHS members and HOlutl.UI It R\t statement in a more formal border. Representzng the SOt'Ii-.n' leaders agree that these are eye stopping genus on our list of (75 Great Plants for -,?-merican and low care. Plus members) own stories. Gardens» is Liatris spicata. Photo by Chrzstz Carter. American Horticultural Society 7931 East Boulevard Drive Alexandria, VA 22308-1300 (703) 768-5700 commentary ~ The American Horticultural Society seeks to promote and nce you've grown a plant in your gar recognize excellence in den you become biased about its possi horticulture across America. Obilities. Did it meet your expectations ~ for performance, color, fi·agrance, resistance to insects and diseases, and other attributes? You'll PRESIDENT DR. H. MARC CATHEY remove some plants and expand your use of others. Or enthusiasm will fade, then be rekin EXECUTIVE VICE PRESIDENT dled by a trip, conversation, book, or catalog. HELEN FULCHER WALUTES I have spent my career studying cultivars ~ "cultivated varieties" propagated by cuttings BOARD OF DIR.ECTORS or bred as controlled crosses to produce Officers 199@-1997 clones with predictable characteristics. Today WILLIAM E. BARRICK, PH.D., CHAIRMAN we are seeing more promotion of naturally Pine Mo:mtain, Georgia occurring species and, especially among veg KATY1vj:OSS WARNER, FIRST VICE CHAIRMAN etables, open-pollinated varieties. Those who Lake Buena Vista, Plorida champion these plants observe that they may NANCY S. TfI0MAS,SECONB VICE CHAIRMAN Houston, Texas contain wlique genetic material that could be WILLIAM A. PUSEY, SECRETARY bred into future crops to meet new environ Washington, D. C. mental challenges. In a natural setting, the CHARLES HENRY SMITH JR., TREASURER planting of native ornamental species allows Middleburg, Vil;ginia natural selection to weed out seedlings less SHERMAN .ADLER likely to survive. On the other hand, open-pollinated varieties not isolated from one Hobe Sound, Florida KATHERINE MOKAY BELK another cross-pollinate. In a group of their seedlings, it is impossible to anticipate which Charlvtte, Nm·th Carolina will mature with the delicious flavor or bigger flowers of the parents. NANCY H. CALLAWAY Preservation of our open-pollinated lines should of course be part of our strategy for Pine Mountain, Gem;gia maintaining genetic diversity. Yet we should also continue to seek and promote varieties JAMES L. GORFIELD propagated ase:>.'Ually or through controlled crosses to offer predictable performance under Downers Grove, Illinois certain conditions--early maturity for growers in the North, heat tolerance for growers ARABELLA S. DANE Boston, Massachusetts in the South. After all, few gardeners can test 900 varieties of okra in their own back yards PAUL ECKE IR. in order to find the best. En cinitas, California In this issue, we present for the first time Great Plants for American Gardens, naming WfLLlAM R. MARKEN 75 suggested by members and AHS leaders as having special value in American gardens. Los Altos, Califomia Forty are native to North America, recognizing the rnelits of plants with origins on our GENE M. M!;LLER own continent. Some have drawbacks, such as being on the edge of being invasive, lack Silpe,. Spring, Maryland ing cold tolerance, or being particular about soil. For some we suggest cultivars that per EGON MOLBAK Seattle, Washington form better over a wider geograpllical area than the species. Nevertheless, choosing the DUDLEY MORGAN best plant for a particular space will always be a judgment call for the individual gardener. Nashville, Tennessee We anticipate responses to the list: "Why not all natives?" vvith Judy Glattstein's piece WILLIAM G.l'ANNUL on the relationship of North American and Asian plants; "why no rhododendrons or Ma1"ti1w'ille, Vil;g;nia roses?" (there are too many to choose just one!) with articles on those well-loved plants. DR. JULIA W. RAPPAPORT We hope you'll have fun with this year's list of "75 for the 75th." Help us add to Santa Ana, California our list of Great Plants for Amelican Gardens by sending us the names of your favorites GEOFFREY L. RAUSCH Pittsb"rgh, Pmnsy/rJania for possible inclusion in future lists. JOS:EPHll\'E M. SHANKS Houston, TexfI,J VALERIE L. "DiO.MAS Alexandria, Virginia ROBERT D. VOLK San Marino, Califomia H. Marc Cathey, AHS President 4 THE AMERICAN GARDENER May/June 199 7 THE AMERICAN members' GARDENER EDITOR KATHLEEN FISHER MAN:AGING EDITOR rum TEIUU J. HUCK ASSISTANT EDITOR DAVID J. ELLIS EDITORIAL ASSISTANT SARA Epp SATISFIED CUSTOMER back of the house. All the rest was re I have been an AHS member for onJy a lit tained and developed as woods. Over the DESIGN AND ART DIRECTION tle more tlun a year, but tl1e magazine is years I have added to tl1e native flowers, JOSEPH YACINSJ<] DESIGN one oftl1e best benefits of membership. ferns , shrubs, and trees while maintaining MEMBERSHIP DIRECTOR I am relatively new to gardenin g and that ""voodsy" feeling. DARLENE OLIVER find the articles well written and most But articles like tlus need to be written ~ helpful. They are not so technical that at ieast every 10 years. EDITORIAL ADVISORY BOARD even a novice like me can't w1derstand tl1e William A. PI~tmm e1' NINA L. BASSUK Ithaca, NelV York content. The format of the magazine is Painted Post, New YoTk JOHN E. BRYAN colorful, logical, and easy to fo llow. In this Sausalito, California ANOTHER CAMERA TIP day of "maxi-advertising" in a "mini-text" JOHN L.