THE AMERICAN GARDENER May/ J U N E 1999 the AMERICAN Members' GARDENER EDITOR DAVTJ') J
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ive Your Garde A Boosi. Annual Booster™and Perennial BoosterT'1by Pursell are specially formulated with POLYON®timed .. release fertilizer for extended, even feeding. For a beautiful garden - count on POLYON®products for premium, professional results. INCORPORPURSELLA T E D 1904 For more information about POlYON®~ roducts, visit our website @ www.fertilizer.com or Call Our Customer Hotline 1·800·874·8892 co n t e n t s Volume 78, Number 3 May/June 1999 DEPARTMENTS An Inside Look 4 North American Irises 26 Members' Forum 5 by C. Colston Burrell (Maria Callas) lily) toxic polzeweed, hellebons. No matte1' when you ga1'den, native species of this 1'egal plant can be found to S'btit. News from AHS 7 1999 AHS Book Award winners) youth ga1'den Native Grasses 32 symposium, flower festival at EPCOT by Rick Darke Focus 10 Create a garden with local cha1'acte1' by Less-toxic cont1'ols for garden 1'oses. using ornamental grasses native to YOU1' region. Offshoots 16 Andre and Fran~ois Michaux 38 Flowers, rocks) and marriage. by Susan Davis Price Gardeners Information Service 17 These late 18th- and early 19th-century French Cherry fruit flies) planning a period garden, plant explore1's- father and son- helped launch bromeliads, miniature roses. the forest conservation movement in America. Mail-Order Explorer 19 Rain Lilies 43 Wild Earth Native Plants. by John E. Bryan Conservationist's Notebook 20 Brighten your patio or b01,der with these delightful, colorfully flow end subtropical bulbs. Appalachian Mountain Club'; multi-Jaceted mtsswn. English-Style Borders in Texas 47 Urban Gardener 22 by Lana Robinson From barren beach house to buttnfly haven. A Texas couple shows how to achieve the look of English mixed b01,den by combining tough but Book Reviews 52 colorful native and exotic plants. Cottage gardening, attracting butterflies, American women and their gardens, herbal remedies. Regional Happenings 58 Bartram's 300th birthday in Pennsylvania, wildflower sale, fields of blooms in Lompoc. On the cover: 11is virginica, a southern native iris, gro}vs in wetlands from Vi1;ginia to Texas. This cultiva~ Hardiness and Heat Zones 62 (Mysterious Monique', bean rich pU1'ple flowers. Pronunciations 63 Photog1'aph by R oger Foley. American Horticul tural Society 7931 East Boulevard Drive • Alexandria, VA 22308-1300 (703) 768-5700., wJlIw.ahs.org an In side look ~ The American Horticultural Society (AHS) educates and inspires people of all ages to become successful and environmentally responsible udging by the number of new books on orna gardeners by advancing the art mental grasses and by the use of grasses as the and science of horticufture. Jfocal point of designs such as the New American Garden created by Wolfgang Oehme and James Van ~ Sweden at the U.S. National Arboretum, these valu PRESIDENT/CEO able plants are finally coming to the attention of LINDA D. WALLMAN American gardeners. In this issue, Rick Darke, au BOARD OF DIRECTORS thor of a new encyclopedia on ornamental grasses, Officers 1998-1999 writes about native grasses appropriate for gardens KAn MOSSWARNBR, CHAIRMAN Lake Buena Virta, Florida in different regions of the United States. NANCY S. THOMAS,FlRST VICE CHAIRMAN If he were still with us, my grandfather, Patrick Houston, Texas Henry McArthur-we called him Mr. Pat-would PAUL ECKE, JR., SECOND VIGE CHAIRMAN have offered a spirited discussion about native Encinitas, California grasses. Grasses were the enemy of his vast fields of WILLIAM A. PUSEY, SECRETARY Washington, D.G. cotton, tobacco, and soybeans in Wakulla, North CHARLES I'IENRY SMITH JR, T:REASURER Carolina. His field hands spent every summer Middleburg; Virginia cropping weeds out of the fields. In rainy years, the grasses often got ahead of the crops. SHERMAN ADjyER Along with the cultivated farmland, Mr. Pat also maintained hundreds of acres of vir West palm Beach, Florida gin stands oflong-leaf pine (Pinus palust1ris). Native grasses were a mortal foe of these L.M. BAKER JR. pines because they were part of the successional process that allowed oak seedlings to de Winston-Salem, North G;';rolina velop and eventually shade out the pines. WILLIAM E. BARRIC!!:, PH.D. IMMEDIATE PAST CHAlRMAl"1 So every three or four years, in early winter, the entire area had to be burned to pre Pine Mountain, Ge01:gia serve the long-leaf pine as the dominant species in this landscape. The December ritual KATHERINE MCKAy BELK Charlotte, N01·th Carolina was always the most u'ying of days because the fire had to be carefully controlled to avoid JAMES:J,. CORFIELD damage to farm buildings and the stately trees. Gmeva., Itlinois While Mr. Pat was WOrFying about his fields and pines, my grandmother, Caledonia ARABELLAS. DANE Bost01I, MasS"acbtlsetts McDonald McArthur, was gro",ting beautiful flowers such as rain lilies (Zephyranthesand JOHN ALEX FLOYD JR. Habranthusspecies), irises, and roses. Articles in this issue by John Bryan, C. Colston Birmir¥fham, Alabama Burrell, and Wi.lliam Quarles, respectively, update and extend our knowledge about these DOR,01fH\:' T. IRELAND ;BIrmingham, Alabama popular ornamentals. WILLIM1 R. MARKEN Also in this issue you'll enjoy garden historian Susan Davis Ptice's article on the French us Altos, California naturalists Andre and Frans:ois Micham, whose conuibutions to American plant explo THEODORE R. MARsTON ration are memorialized by many plant and place names. Coincidentally, Frans:ois named [(irklalld, Washi,¥fton the long-leaf pine P australis, which-if it had been ruled a legitimate name-would have EGON MOLBAK Seattle, WashingtMI led my grandfather to believe Frans:ois was confused about which hemisphere he was in. DUDLEY MORGAN Finally, we have a message for those ofyou who garden in the wide-open spaces of Texas Nashville, Tennmee and the surrounding region. Garden writer Lana Robinson describes how the owners of a CAROL C. MORRISON Palatine, Illinois Texas nursery are using a select variety of drought-tolerant natives and adaptable exotics to GEOFFR:EY L. I!,AifJSCH create brightly colored, English-style mL"Xed borders that stand up to the hot, dry climate. Pittsbt>rgh, Pennsylvania Despite Mr. Pat's deep-seated antagonism toward native grasses, he was a practical VALERIE 1.,. THOMAS Alexandria, Virgillia man. I'm sure ifhe were alive today he would have a container nursery on his farm, and HOWARD TUCKER he would be selling native grasses rather than burning them. Ever in green, Washingtoll, D. C. SUSEE USREY Dayton, Oregon ROBERT D. YOLK San Marino, California ~ -H. Marc Cathey, AHS President Emel'itus PRESIDENT EMERITUS DR. H. MARC CATHEY Marc Cathey's upcoming spealling engagements al'otmd the cotmtry are listed on page 9. 4 THE AMERICAN GARDENER May/ J u n e 1999 THE AMERICAN members' GARDENER EDITOR DAVTJ') J. EL-LIS MANAGING EDITOR rum MARYYEE ASSISTANT EDITOR CHRISTINA M. SCOTI COMJ\IJUNICATIONS ASSISTANT MMK C. MOLLAN DESIGN AND ART DIRECTION JOSEPH YACINSKI DESIGN ~ EDITORIAL ADVISORY BOARD JOHN ALEX FLOYD JR, CHAIR Birmingham, Alabama NINA L. BASSUK Ithaca, New York RICHARD E. BIR Brcpard, North Carolina JOHN E. BRYAN San Francisco, California JOHN L. CREECH HendlPl·sonville, North Carolina The pale pink flowers of Asiatic lily 'Maria Callas'. KEITH. CROTZ Chillicothe, Illinois LlLIUM 'MARIA CALLAS' ics, fonts, variously split layouts, and other PANAYOTI KELAIDIS Asiatic lilies are my favorite plants. I grow tactics that certainly catch the eye and make Denver, Colorado them in pots until I can see exactly what dramatic visual statements. Unfortunately RICHARD W. LIGHTY color tl1ey are. Because I try so many, I de these graphics also often compete with, Greenville, Delaware veloped a strip along the north side of the rather than enhance, content. To me, The ELVIN MCDONALD West Des Moine~ Iowa house-which gets morning sun-for American Gardener layout is like good gar planting lilies. Before planting, I dug in den design-strong but not overwhelming. ~ sand, bonemeal, compost, and greensand, Wy,me A. Lee ADVERTISING AHS ADVERTISING OFFICE then planted the bulbs, labeled them, and Chicago, Illinois 4350 DiPaolo Cente:r, Suite: B topdressed with a little manure and mulch. Glenvie:w, IL 60025 Under these conditions, the bulbs not only PRETTY BUT DEADLY (847) 699-1707 • FAX: (847) 699-1703 bloom well, they increase rapidly. The article by Pam Baggett titled "Bold COLOR SEPARATIONS My current favorite Asiatic illy is 'Maria Plants" (JanuaryjFebruary) featured poke FILM GRAPH'ICS Callas', pictured here with my daughter, weed (Phytolacca americana). Yes, it is an PRINTER Dominique. I love this lily for what impressive plant, but I am Wliting because BANTA r>UBLICATIONS GROUP Gertrude Jekyll called its "tender" color no mention was made of how dangerous ing. The blooms are a pale beige-pink, with The American-Gardener (lSSN 1087-9978) is published this plant is. Many people have died from bimoJ)tI1Iy (Tanuary/february, MarohlApril~May /June, dark spots and a soft raspberry throat. eating pokeweed berries, which are so poi July/ Angust, Septemberj October, November/Decem ber) by the American Horticultural Society, 7931 East Camay Woodall sonous that it takes only three to kill a small Boulevard Drive, Alexandria, VA 22308-1300, (703) Towson, Maryland child, although-strangely enough-birds 768-5700. Membership in the SOGietyindudes a sub. scrip tie" to The American Gwrd ..t< .. ;t\nrIual dues are who ingest the berries merely become in $25; two years, $45.lntemationalaues are $60. $10 of ON THE RIGHT TRACK toxicated. In addition, the leaves and roots annual dues (foes toward magaziQe subscriptiP1l. Period icals postagepajd att Alexandria, Vl!gipia, and at additional '\s a long-time reader of The American Gar are also poisonous. mailing offices. Postmaster: 'tilease sena Form 3579 to The A./Jeriean Gardener, 7931 East Boulevard Drive, dener and other gardening magazines, I'd I suggest that every article in your pub A1exandri., VA 22308-1300.