2019 Annual Flower Trial Garden
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201 9 Annual Flower Trial Garden Performance Report Department of Horticulture and Landscape Architecture 1401 Remington Street Fort Collins, CO 80523 www.flowertrials.colostate.edu Index Map .......................................................................................................................................................... .. 2 Purpose and Introduction ..................................................................................................................... .. 3 Cultural Data .......................................................................................................................................... .. 5 Data Collection Methods…………………………………………………………....…….… 10 Other Information…………………………………………………………………...……… 12 All-America Selections® Variety Listing…………………………………………..……….. 13 Trial Results “Best Of” Winners and “Plants Rated as Superior”……………… ………….….…………. 14 Top 5 Plants Voted by Garden Visitors………………………………………..……………. 17 Ratings and Evaluation Day Comments for Varieties Grown in the Ground…..………….. 18 Ratings and Evaluation Day Comments for Varieties Grown in a Container .… ………….... 105 Size Data, End-of-season Comments and Flowering Data for Varieties Grown in Ground…. 214 Size Data, End-of-season Comments and Flowering Data for Varieties Grown in Container .. 236 1 Map of Trial Garden 2 2019 Flower Trial Garden Purpose The purpose of the flower trial garden is to evaluate the performance of flower varieties under our unique Rocky Mountain environmental conditions. Our growing conditions are characterized by high altitude, intense solar radiation, drying winds, severe hailstorms, large fluctuations between day and night temperatures, season-long need for irrigation and heavy clay soils. Plants are evaluated based on plant vigor, uniformity, floriferousness and tolerance to environmental and biotic stresses. Performances of these varieties are judged by selected students, faculty, industry representatives, public horticulturalists and advanced Master Gardeners. The report will be distributed at the end of the season to all participating companies. The trial results will also be available to the public online at www.flowertrials.colostate.edu. We had twenty-three seed and vegetative companies participate in our twenty-fifth annual, industry- supported, bedding plant trials. The garden consists of approximately 1068 different plant varieties this year. Plants are grown in either the sun or under our shade structure that provides about 70% shade. The plant companies are given the option to choose whether they want their varieties grown in a ground bed, a container or in both locations. Each trial entry in the ground is planted in 2 parallel rows of 9 plants per row for a maximum of 18 plants. Each 20” container is planted with 5 plants, except for Combinations that have 3 planted. There are 468 varieties planted in sun beds, 50 varieties planted in shade beds, 487 varieties planted in sun containers and 55 varieties planted in shade containers. Participating Companies: American Takii Inc. Hilverdakooij Ameriseed PAC Ball FloraPlant PAS/Keift Seed Co. Ball Ingenuity PanAmerican Seed Beekenkamp Proven Winners Benary+ Sakata Seed America Inc. Danziger Selecta Darwin Perennials Suntory Flowers Limited Dummen Orange Syngenta Dutch Heritage Terra Nova Florist Holland B.V. Westhoff Flowers Green-Fuse Botanicals 3 In Kind Donations: Greencare Fertilizers, Inc. - Donated water soluble fertilizer for use in the garden and greenhouse. Everris, Inc - Donated the Osmocote slow release fertilizer used in the beds and containers. Pindstrup - Donated potting media used to grow-on vegetative plugs. Tagawa’s - Donated potting media used to grow-on vegetative plugs. Organix - Donated organic media for sun beds and containers. Harrell’s – Donated water soluble and slow release fertilizers for containers. Welby Gardens - Grew all seed propagated plants at a substantially reduced cost for the trials. In Appreciation The Department of Horticulture and Landscape Architecture would like to recognize and thank the following people for making the trial gardens happen this year. Sean Markovic – Graduate Student and Annual Trial Garden Coordinator The Trial Garden Staff – Burt Thomas, Geoff Kozie, Chris Bruton David Staats – Horticulture Research Associate All the Larimer & Weld County Master Gardeners who volunteered their time and hard work. Al Gerace and Dan Gerace of Welby Gardens and all of their staff. The Trial Garden Advisory Committee – Melissa Main (Ernst Benary of America, Inc.), Dan Gerace (Welby Gardens), Al Gerace (Welby Gardens), Diana Reavis (Eason Horticultural Resources Inc.), Duane Sinning (Colorado Department of Agriculture), Galen Dokter (Vaughns), Gene Pielin (Gulley Greenhouse), Jim Devereux (Green-Fuse Botanicals), Milan Clickingbeard (Tagawa Greenhouses), Karl Trellinger (Syngenta Flowers), Bridget Blomquist (Denver Botanic Gardens), Mark Seguin (Sakata Ornamentals), Merle Moore (retired, Denver Zoological Gardens), Ron Brum (Ball Horticultural Company), Amy Gonzales (Syngenta Flowers), Susan Stauber (Ball Horticultural Company), Traicer Gray (Elitch Gardens), Julie Lehman (Denver City Park Greenhouse), Richard Anderson (Tech Center Landscape), Brian Austin (Dutch Heritage Gardens), Diana Shull (Dummen Orange), Holly Shield (Denver City Parks), Nick Marinelli (Weston Landscape and Design), Steven Engel (PanAmerican Seed), Beth Gulley (Gulley Greenhouse), Kathy McKay (Flamingo Holland), Sean Moody (Ceres Landcare), Veronica Scadden (Denver CPS), Stephanie Guiterrez (Designs By Stephanie), John Navant (Hyland Hills), Shalene Hiller (City of Westminster) An Invitation You are cordially invited to tour the garden at your leisure to enjoy the color and ambiance of a place that is like no other in Colorado. Any suggestions you may have for future programs or improvements are strongly encouraged, so please feel free to contact us with your ideas. Jessica Davis – Department Head Phone: (970) 491-7018 James E. Klett – Annual and Perennial Flower Trial Garden Faculty Coordinator Phone: (970) 491-7179; Fax: (970) 491-7745; Cell Phone (970) 218-0104 E-mail: [email protected] 4 2019 CULTURAL DATA Growing All seeds were sent to Welby Gardens in Denver, CO in January and February 2019 for germination and growing-on in their greenhouses into 4-cell packs. Seed varieties grown at Welby Gardens were all received on June 6 & 13 and planted in the garden starting on June 7. All vegetative varieties were received as plugs and transplanted into 4.5” pots shortly after arriving at Colorado State University from late March to mid-April. Fertilization in Greenhouses* Dosatron fertilizer injectors rated at 7 GPM were used in the greenhouses to fertilize plants each day they were watered, with the exception that every weekend they were watered with clear water. Greencare 14-4-14 water soluble fertilizer was used. Plants were grown in the greenhouses at the CSU Horticulture Center. They received fertilization at a rate of 200 ppm. Chemicals Used in Greenhouses A drench of Banrot (6 oz/gallon) was applied to all vegetative plugs immediately after arrival and prior to potting up. This year there were no major abiotic or biotic issues in the greenhouse making for an extremely stress-free year on the plants. The new greenhouse environment was ideal for growing quality plants. High sun and warm temperatures lead to the application of B-Nine on some more vigorous Petunias on May 16th. A preventative fungicide and insecticide application of Mantra and Pageant was applied twice on April 17th and May 3rd. Soil Amendments and Preparation All beds were raked clean of old mulch, planting material and weeds prior to planting. Where necessary, RoundUp was sprayed on weeds. Prior to planting, 1.5-2” of new Grower’s Mix media from Organix Supply Inc. was added to all sun beds. The beds were roto-tilled to a depth of 8” which helped incorporate the new media. After tilling, the beds were crowned for better drainage and raked smooth. For containers, the top 6-8” of media was removed and ¼ teaspoon of Banrot was sprinkled over the remaining soil and watered in. The containers were then re-filled with the same Grower’s Mix media used on the sun beds. * No endorsement of products named is intended nor is criticism of products not mentioned. 5 Soil Analysis E.C. Lime % NO3- pH mmhos/ P K Zn Fe Mn Cu Texture Estimate O.M. N cm Ground Beds 7/21/16 6.5 1.8 High 18.1 164 263 713 28.9 159 3.9 13.3 Loam Container 7/21/16 6.5 1.3 Low 50.0 126 364 2501 45.6 153 76.8 21.3 Loam *All elements are measured in parts/million Planting Dates DATE VARIETIES PLANTED May 29, 2019 Sun Containers: All June 5, 2019 Sun Beds: Osteospermum, Euphorbia, Geraniums, Gaillardia, Isotoma, Angelonia Shade Beds: Impatiens, NGI, Coleus, Begonia June 7, 2019 Sun Beds: Dahlia, Petunia, Argyranthemum June 12, 2019 Sun Beds: Vinca, Zinnia, Lantana, Celosia, Bacopa, Basil, Dianthus, Pentas, Verbena, Gazania June 19, 2019 Sun Beds, Conatiners: Begonia, Ipomoea, Digitalis, NGI, Salvia, Tomato, Pepper, Rudbeckia, Gerbera, Alternanthera, Nemesia, Coleus, Helianthus, Helichrysum 6 Bed Spacing Variety 1 Variety 2 Ex. White Petunia Ex. Pink Petunia A B A = sign (one variety) Genus Spacing (A) in Spacing (B) in Gaillardia 16 26 Artemesia 16 26 Canna 16 26 Gomphrena 16 26 Vinca 16 26 Geranium 16 26 Argyranthemum 16 12 Angelonia 16 12 New Guinea Impatiens(sun) 20 13 Coleus 20 13 Dahilia 16 12 Begonia 16 12 Salvia 16 12 Phlox 16 12 Lobelia 16 12 Lavendula 16 12 Petunia