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Rhizanthella Gardneri News and information for the members of the Maryland Orchid Society March 2014 In March, MOS Rhizanthella gardneri Features a Round From Wikipedia, the free encyclopedia Table Panel Article provided by David Smith Rhizanthella gardneri, also known as n March, in lieu of an individual Western Underground Orchid, is a plant speaker, MOS will be featuring a in the orchid family, discovered in the panel discussion with diverse, I spring of 1928 in the wheatbelt of Western experienced MOS growers. The panel will be ready to offer up all the advice Australia. you need to help grow and bloom your new-found treasure from the show. We Jack Trott had bent to investigate an odd encourage you to bring in your favorite crack that had appeared in his garden’s soil, new plants or a long-time, not-so- and had noticed a sweet smell that arose reliable bloomer and put the panel to from the ground. Scraping away the soil, the test. We’re confident they’ll be able he soon uncovered a tiny white flower, to point you in the right direction to get about half an inch across, growing your orchid blooming in your growing underground. What he had found was an conditions. Feel free to share you own entirely new type of orchid. The discovery knowledge and secrets to blooming and Photo by Fred Hort generated such excitement that a wax re-blooming your selected orchid. model was toured around the British Isles.¹ Western Underground Orchid Rhizanthella gardneri SEPOS Needs The white leafless plant is made up of a fleshy underground storage stem (or tuber), received this from the fungus the plant is Clerks which produces flower head consisting of then able to convert the water, nutrients The SEPOS show is April 11 - 13 in around 150 tightly packed, tiny flowers.² and carbon dioxide into the energy needed Philadelphia (see page 6 for details) Unlike any other orchid in Australia, the for growth and maintenance. and they need clerks to help with Western Australian underground orchid judging Friday, April 11. If you are remains completely underground for its The plant blooms in May and June and interested, please contact Gail Sklar at whole life. Not being able to obtain the measures 2.5–3 cm. The flower head [email protected]. sun’s energy, it instead feeds on the broom contains 8 to 90 small dark maroon honeymyrtle, a shrub. It is linked to it by a flowers. mycorrhizal fungus¹ named Thanatephorus gardneri.³ Rhizanthella gardneri reproduces vegetatively by which it can produce three Theeducation March Education Corner corner will feature This particular orchid is a myco- daughter plants. They also undergo sexual Bill Scharf discussing the successes of heterotroph as it relies completely on the reproduction, and underground insects this month’s annual show. Members are broom honeymyrtle and fungus for its such as termites and gnats are known to also welcome to join in and give their nutrients and carbon dioxide. Having pollinate the flowers,² attracted by the feedback. David Smith continued on page 5 INSIDE 2 February Show Table 3 Ideal Light Ranges in Foot Candles for Orchids 3 February Judges’ Choice by Rachael Adams 5 Local AOS News february 2014by Tom McBride show table Novice Dendrobium No Entries 1. Den. Wonder Nishii - Phuong Tran & Rich Kaste Home Grown 2. Tie Den. denudans - Sarah Hurdel & 1. C. skinneri ‘Casa Luna’ AM/AOS - Gary Smith Marilyn Lauffer Den. kingianum - Bob Travers 2. Tie Paph. (Hilo Jewel X fairieanum) - Den. aggregatum - Eric Wiles Owen Humphrey 3. Den. faciferum - The Adamses B. Little Stars - Kathi Jackson Phal. Hybrid - The Soykes Miscellaneous Hybrids U.S. Botanic 3. Tie Phal. Everspring Light - 1. Zygolum Louisendorf - The Soykes John Dunning 2. Tie Coel. Bird in Flight - Garden Trip Phal. Everspring Light - Sarah Hurdel & Gary Smith Norma Lynch Ctsm. Kengar Phantastes - Planned Eric Wiles Greenhouse 3. Phcal. Kryptonite ‘Ursula’ - MOS is planning a field trip April 1. Den. Dream ‘Ace’ - The Adamses John Dunning 26, 2014, 10:15 a.m., to the U.S. 2. Tie Lyc. andreetae - David Smith Botanic Gardens Conservatory in Opst. Mem. Mary Nattrass - Species D.C., which currently is featuring Eric Wiles 1. Ddc. tenellum - David Smith 3. Cattlianthe Gold Digger ‘Orchidglade’ - 2. Ddc. wenzelii - The Adamses Orchid Symphony. Barbara Buck 3. Pln. formosana - Clark Riley Experience the incredible elegance Cattleya Miniature of an orchid symphony. The U.S. 1. Cattlianthe Gold Digger ‘Fuchs 1. Pths. species - Sarah Hurdel & Gary Botanic Garden features exuberant Mandarin’ - Sarah Hurdel & Gary Smith Smith 2. Tie Lc. Rojo ‘Barbara’ - 2. Tie Lep. Imcalso - Val Lowe displays of orchids nestled among The Adamses Masd. Maui Lollipop - whimsical topiaries and musical Blc. Mem. Grant Eichler ‘Lenette’ Clark Riley fountains. Illuminated by an orchid HCC/AOS - Crypyocentrum latifolia - chandelier, the Garden Court Michael Moran David Smith will sing the praises of beautiful Epi. Prince Valley ‘#1’ - Chris Zajac Phal. Sogo Ibis ‘Little Maruko’ - The Soykes orchids. 3. Tie Lc. Love Knot ‘Diamond Lake’ - 3. Tie Porroglossum meridional - David Smith The Adamses The Conservatory features orchids Slc. Anzac ‘Orchidhurst’ - Campylocentinum ornithorybachum from all over the world in a Bob Travers - Eric Wiles multitude of environments. Come see desert orchids, jungle orchids Phalaenopsis First Bloom Seedling 1. Phal. Hybrid - The Soykes 1. Paph. Michael Koopowitz - and even orchids used in medicine 2. Tie Phal. Sogo Vivien - The Adamses and cooking against the gorgeous Judi von Mehlem 2. Phrag. Pink Panther - Eric Wiles backdrop of the U.S. Botanic Phal. Jiao’s Pink Girl - 3. Tie Paph. Wenshanense - Garden collections. Sarah Hurdel & Gary Smith John Dunning 3. Phal. Stripes on Snow - John Dunning Slc. Circle of Life X Lc. Jose Dias Castro - Michael Moran Orchid Symphony is a Paphiopedilum and Phragmipedium collaboration between the U.S. 1. Paph. Magical Venus ‘Hampstead’ AM/ Fragrance Botanic Garden and Smithsonian AOS - Sarah Hurdel & Gary Smith 1. Lc. Culminant ‘La Tulerie’ - Gardens. If you are interested 2. Tie Phrag. Cardinale ‘Wilcox’ - Marilyn Lauffer Marilyn Lauffer 2. Blc. Gladys Oumae ‘Roy’ HCC/AOS - in joining us for a private tour, Paph. (Hsinying Web X Bob Johnston contact Laura Sobelman or Gregg fairrieanum) - Chris Zajac 3. Trpl. suavis - The Soykes Custis. 3. Paph. Dreaming Green - Bob Johnston See more at: http://www.usbg. Oncidium The Judges Choice of the Evening 1. Odcdm. Sunlight ‘Pacific Punch’ - was Den. Dream ‘Ace’, exhibited by gov/exhibits#sthash.iRMdkFsz. Eric Wiles The Adamses. See page 3 for how the dpuf 2. Rdcdm. Orchidom Outstanding X Onc. Adamses grow this awesome plant. Thank Tom’s Beauty - Chris Zajac you to our judges who were Joel Graham, 3. Psy. Mendenhall - Owen Humphrey Marilyn Lauffer and Joan Roderick. Our show table had an incredible display of 153 beautiful flowering plants. 2 IDEAL LIGHT RANGES IN FOOT-CANDLES Don’t Miss These {--------------------------- Light range in foot-candles --------------------------------} MOS Speakers! Low Medium High Plant Name 500 1,000 1,500 2,000 2,500 3,000 3,500 4,000 Deborah Dade has a thrilling speaker Brassavola line-up planned for MOS’ 2014 monthly Brassia meetings. Following is a list of Cattleya Cymbidium - Standard confirmed list of speakers: Cymbidium - Miniature Dendrobium March: MOS Panel to be determined Epidendrum Laelia Ludisia April: Trey Pyfer, Little Brook Orchids, Masdevallia Common Orchid Pests Miltonia Pest and Fungi Management Odontoglossum Oncidium Trey will be taking pre-orders. Paphiopedilum Please call Little brook Orchids at Phalenopsis 717-394-1000. Phragmipedium Sophronitis Vanda Chart provided by Bill Scharf by Rachael Adams Dendrobiumfebruary Dream ‘Ace’judges’ choice endrobium Dream ‘Ace’ was registered in 1970 by Jiro DYamamoto of Yamamoto orchids. It is a nobile hybrid but was bred to require little to no rest period, unlike other nobile- types. I do not give it a winter rest. It blooms heaviest in late winter (February- March) but it will also produce flushes of flowers a few times throughout the year. It is a vigorous grower and bloomer and has a compact bushy growth habit. The only downside is that the flowers do not last as long as some of my other nobile hybrids. Typically the greenhouse is kept at 65-70 degrees in the winter for the daytime temperature and 55-60 degrees at night. However on clear sunny days in the winter the temperature may go up to 80. Summer temperatures are typically much warmer. I summer during active growth. In terms of plant to grow and is among the most often use a 20-20-20 fertilizer and it is light, Den. Dream ‘Ace’ hangs near the top trouble-free plants I own. fertilized periodically when the rest of the of the greenhouse and receives the same greenhouse is fertilized. I do switch amount of light as the cattleyas. It is grown Editors’ note: You can see from the above fertilizers but I do not have any specific in a wood basket with standard orchid photo that Dream ‘Ace’ took many more brand preferences and I will also bark media and is overdue to be repotted. awards at this year’s show, including best incorporate fish emulsion. The greenhouse I am planning on putting it in a larger Dendrobium in the show. is fertilized most heavily in spring and basket this spring. It has been a rewarding 3 Spring 2014 American Orchid Society Members’ Meeting and Show Orchids A Growing Obsession • April 30– May 4, 2014 he Orchid Society of Minnesota is art work by Jacque Rosenau & Kathy very pleased to host the Spring Creger. T2014 American Orchid Society Members’ Meeting and Show April 30th This will be an AOS judged show with through May 4th, 2014.
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