The Hardy Plant Society/Mid-Atlantic Group 2016–2017 Seed Exchange Catalog MID-ATLANTIC GROUP he 23rd annual edition for the first time. As you can tions and you will find plants of the Seed Exchange see, this seed program in- your garden can’t do with- TCatalog includes 976 cludes new plants not previ- out! Since some listed seed seed donations contributed ously offered as well as old is in short supply, you are en- by 57 gardeners, from begin- favorites. couraged to place your order ners to professionals. Over We’re sure you’ll enjoy early. 85 new plants were donated perusing this year’s selec- Our Seed Donors Catalog listed seed was generously contributed by our members. Where the initial source name is fol- lowed by “/”and other member names, the latter identifies those who actually selected, collected, cleaned, and then provided descriptions to the members who prepared the catalog. If a donor reported their zone, you will find it in parenthesis. Our sincere thanks to our donors—they make this Seed Exchange possible. Aquascapes Unlimited Gregg, John 3001 (7) Schmitt, Joan 840 / Heffner, Randy 1114 Haas, Joan 1277 (6a) Scofield, Connie 1585 Bartlett, John 45 Henry Foundation 1170 (7) Solow, Sharee 1320 Bennett, Teri 1865 (7) Iroki Garden Squitiere, Paula 2294 (6) Berger, Clara 65 / Deutsch, Cathy 5024 (6b) Stonecrop Gardens, 118 Berkshire Botanical Garden Jellinek, Susan 1607 (7a) Streeter, Mary Ann 926 / Hviid, Dorthe 1143 (5b) Jenkins Arboretum 9985 (7a) Ulmann, Mary Ann 2193 (6) Bittmann, Frank 2937 (6a) Kolo, Fred 507 Umphrey, Catherine 965 (7a) Bowditch, Margaret 84 Kushner, Annetta 522 Urffer, Betsy 1939 Boylan, Rebecca 2137 (6b) Leasure, Charles 543 (7a) Vernick, Sandra 1759 (7) Bricker, Matthew D. Leiner, Shelley 549 Wave Hill Gardeners 9976 (6b) & Jamie H. 2429 (6) Maher, Carole 3176 (7a) Weaver, George M. Carrington, Chris 2890 (7b) Mahony, Peter 590 (7a) & Anne W. 2517 (7) Cherry, Lynn 2199 (7a) Malocsay, Jan-Paul 592 (6) Weidner, Bea 5033 (6b) Cresson, Charles 199 (7) Mayer, Tiiu 3006 Weisman, Phyllis 1001 (7) Creveling, Beth 200 Nachlas, Sally 2621 (6) Whipple, Sandra 3333 Dahlke, Miriam 208 Norfolk Botanical Garden Whitesell, Steve 1017 (5) DeMarco, Loretta 215 (7b) / O’Neil, Brian 1999 Wiedorn, Paul Doblmaier, Susan 2515 (6) Perron, William 3321 & Gillian 1020 (7) Doering, Alice 239 (6) Robinson, Barbara Paul 797 Zeller, Alyce 2403 (7) Ellis, Barbara 269 Romenesko, Marilyn 1580 (6-7) Garnett, Polly 318 Ruhren, Douglas 817 Our Catalog Staff The HPS members who have worked to produce this catalog, over the last three months, form a talented and dedicated group to whom we are all grateful. Contact the team via email at [email protected]. Sandy Vernick ............Seed Exchange Chair Carole Maher .............Seed Exchange Vice Chair Jim Bobb ....................Seed Catalog Editor, Data Entry, and Archive Master Lynn Cherry ...............Donation Receiver and Seed Coder Mary Ann Thomas .....Nomenclature, Code Master, Order Tallier, and Proofreader How to Use this Catalog Germination Codes, Methods Reference Materials Each list entry is identified by a combina- Pretreatment Nomenclature tion of a six-character Plant Code and a CMS Cold moist stratify. Sow in pot and The primary resources used to verify Donor Code. The list is organized alpha- place outside in January or February, or and update nomenclature for this list are numerically by plant code. We have listed stratify by placing in the refrigerator for the Plant List (http://www.theplantlist. each plant and the basic facts about it only the required time in a sealed plastic bag org/) and Royal Horticultural Society once in the following format: containing a seeded pot, a mix of seed Horticultural Database (http://apps.rhs. and some sowing mix, or a layer of seed org.uk/horticulturaldatabase/). Plant Code Botanical name. COM- within damp paper towels. (Seal bag well, Additional resources are the List of MON NAME. Plant type. Light since ethylene gas from fruit can affect Names of Perennials—International requirements. Plant height × spread. seed germination.) Standard 2005–2010; the Encyclopedia Bloom season. Frz Freeze the seed for the period noted. of Perennials from the AHS, edited by NST No special treatment. Graham Rice; and the Manual of Annuals, After the plant name and basic plant facts, Scfy Scarify seed before sowing. Scarify Biennials and Half-Hardy Perennials, you’ll find any further information from means to penetrate the seed coat to al- by A. Armitage. A portion of the plants each individual who donated that particu- low water absorption, which thus speeds were further referenced in the American lar plant as follows: germination. This can be accomplished by Horticultural Society A-Z Encyclopedia abrasion, nicking, chipping, filing, thresh- of Garden Plants (1997, Brickell) and the Donor Code - Flower color. Donor’s ing, soaking, dousing with boiling water, Index of Garden Plants (1994, Griffiths). description of or comments about the or other such means. plant. Germ: Donor’s germination WMS Warm moist stratify. Same as for Germination information, if provided. Donor name. CMS, but at room temperature. Bubel; The New Seed Starters Handbook (1988). ‘Cultivar name’ of plant from which Light Requirements DeBaggio; Growing Herbs from Seed, seed was collected is identified, if avail- BC Barely cover seeds. Cutting & Root. (2000) able, within the Botanical name. Please D Requires darkness for germination. Deno; Seed Germination Theory and keep in mind that seedlings from cultivars Cover with lid or aluminum foil to ex- Practice. (1993) may not come “true” from seed. They are clude light. Park Seed Company; Success With Seed. not genetically identical to the parent. The L Do not cover seeds; light is needed for Phillips; Growing and Propagating Wild seedlings they produce may look identical germination. Flowers. (1985) to the seed parent, may resemble the seed SS Surface sow. Powell; From Seed to Bloom. (1995) parent closely, or they may look very dif- ferent from the seed parent. Temperature Illustrated Books BH Bottom heat, used for any seed requir- We have been asked to recommend some Botanical name abbreviations ing soil temperature more than 70°F. books with good color photos. Many of f. form C Cool, approximately 50° to 60°F. the plants in this year’s Seed Exchange subsp. subspecies R Refrigerate after sowing. Catalog are illustrated in one or more of syn. synonym, alternate name OW Overwinter outdoors. the following: var. variety W Room temperature, approximately 65° Brickell and Zuk; The American to 70°F. Horticultural Society A-Z Plant types abbreviations Encyclopedia of Garden Plants. An Annual Germination Time (1997) Bien Biennial Maximum time is listed in days (d), weeks Ferguson; Right Plant, Right Place.(2005) Per Perennial (wk), months (mo), or years (yr). Harper & McGourty; Perennials: How To TenBulb Tender Bulb Select, Grow & Enjoy. (1985) TenPer Tender Perennial Special Notes Hay and Synge; The Color Dictionary of TenShrub Tender Shrub Cycle Seeds require alternating periods Flowers and Plants. (1991) of cold and warm to germinate. Kohlein and Menzel; Color Encyclopedia Rtp Resists or resents transplanting. of Garden Plants and Habitats. SIS Sow in situ (directly in the garden). (1994) SR Store seed (dry) in refrigerator before Phillips and Rix; The Random House sowing. Note: this differs from CMS, Book of Perennials, 2 volumes. which requires moisture. (1991) Tenenbaum, ed.; Taylor’s Guides, a series of volumes, including Annuals, Perennials, Bulbs, Groundcovers, and Trees. 2 HPS/MAG 2016–2017 Seed Exchange Catalog Abelmoschus manihot – Agastache foeniculum Abe0050 Abelmoschus manihot. ORNAMENTAL OKRA, Act0900 Actaea racemosa (Continued) SUNSET HIBISCUS. An. Sun. 6+ x 3'. Summer–Fall. 2429-White flowers in summer. Germ: Cycle: WMS, 199-Pale yellow with maroon centers. Evenly moist soil, CMS, WMS. Bricker. likes heat. Self-sows. Blooms with asters. Cresson. 9985-Jenkins Arboretum. 522-Yellow. A back-of-the-border plant. Pale lemony Act1000 Actaea rubifolia. APPALACHIAN BUGBANE. Per. yellow flowers (like tissue paper) with red inside. Best Sun/PtShade. 6–8 x 1–2'. Summer. Zone 3–8. photo and description found in Wayne Winterrowd’s 2429-A late summer, white-blooming bugbane with bold Annuals for Connoisseurs. Germ: Soak, 1 hr in lukewarm foliage. Flower stalks are held stiffly upright. Germ: water before sowing; BC; BH, 5–30 d; soaking is Cycle. Bricker. essential. Kushner. Act2000 Actaea simplex Atropurpurea Group (syn. 817-Six-inch-wide sulfur yellow flowers most of Cimicifuga ramosa var. atropurpurea). BUGBANE. Per. the summer, especially if deadheaded. Has been PtShade. 4 x 4'; from 6–7' in bloom. Fall. overwintering at the JC Raulston Arboretum. Entirely 318-Fragrant white flowers in September. Foliage dark worthy as an annual. Ruhren. purple. Turns dark green in fall. From plant acquired as 1865-Yellow flowers with dark red eye. Perennial in pot ‘Hillside Black Beauty’. Garnett. if kept above 32°F, self-sows, sun. Germ: NST. Bennett. Act3100 Actaea simplex Atropurpurea Group ‘Brunette’ Ace0030 Acer buergerianum. TRIDENT MAPLE, THREE- (syn. Cimicifuga simplex Atropurpurea Group ‘Brunette’). TOOTHED MAPLE. Tree. Sun. 30 x 25'. Zone 5–9. BUGBANE. Per. PtShade. 4 x 2'. Fall. 3001-Native to Eastern China, named for its wide, 797-White flowers. Robinson. trilobed leaves. To 20–30', with attractive red/orange Act4600 Actaea simplex ‘Prichard’s Giant’. BUGBANE fall color. Popular for Bonsai. Germ: CMS: 60 d. Seed ‘PRICHARD’S GIANT’. Per. Shade. 4–7'. Late Summer. Zone has been moist packed warm, so will need 2 mo cold on 4a–8b. receipt. Gregg. 5024-White blooms. Capable of reaching more than 7' Ace0500 Acer griseum. PAPERBARK MAPLE. Tree. Sun/ high, strongly fragrant. Germ: Cycle: WMS 15 d, CMS PtShade. 30 x 30'. Spring. Zone 4–8. 30 d, return to WMS. Iroki Garden. 2294-Small tree. Seedlings sprout beneath mine. Germ: Adi6000 Adina rubella.