North Dakota State University * Dickinson Research Extension Center
1089 State Avenue, Dickinson, ND 58601-4642 Voice: (701) 483-2348 FAX: (701) 483-2005
1995 CULTIVAR TRIALS OF BEDDING PLANTS
B. Laschkewitsch and R. Smith
Department of Plant Sciences, North Dakota State University, Fargo ND
Performance trials on over 300 annual bedding plants were conducted during the 1995
growing season by the Plant Sciences Department at North Dakota State University. In
Fargo, the main trials were located on the plots on the west side of campus while a small
evaluation bed was added at the research station in the western part of the state at
Dickinson, ND. Both the weather and soil types in Dickinson are considerably different
than the Fargo site. The Fargo plots consist of a heavy clay soil while Dickinson has a
much lighter soil and typically a drier climate. We plan to expand our trials in Dickinson
Cultivars evaluated at both sites were seeded in Jiffy Mix in the Horticulture and Forestry greenhouses on the NDSU campus in March, April and May. The only exception was geraniums from Oglevee which were received as rooted cuttings. When at the proper stage, seedlings were transplanted into cell packs containing Sunshine Mix #1. Six plants of each cultivar (12 plants of mixes) were transplanted in to the field at the Fargo site June 2 - June 6, 1995. Plants were immediately watered in with Miracle-Gro (15-30-15) liquid fertilizer. Plants were fertilized twice during the growing season. In Dickinson, plants were set out the week of May 15, 1995. Unfortunately, a light frost followed planting in Dickinson and a few salvia and verbena were lost and the geraniums were slowed quite a bit. At both stations, overhead irrigation was applied as needed and weeding was done by hand.
The weather at the Fargo station was warmer and drier than last summer. Rainfall for June, July and August was 2.36 inches less than last year but only .38 inches above average. Temperatures in June, July, and August averaged 2.0 F higher than normal but were 3.5 F warmer than in 1994. In July, two severe storms hit Fargo two days in a row which resulted in some water damage to the trial beds. The snapdragons were completely lost and the verbena were slowed substantially. In Dickinson the weather was warmer and wetter than normal. Rainfall for June, July and August exceeded the average by 3.7 inches and temperature for the same period was 1.3F above normal.
Plants in Fargo were evaluated twice over the season for height, spread, and qualities such as vigor, bloom quality, and overall appearance. The first evaluation was July 28, 1995 and the second was done on August 31, 1995. The Dickinson trials were evaluated on August 15, 1995 by Dr. Ron Smith.
At the Dickinson trials, the top five were:
The trial garden at NDSU is an official All-America Selections display garden and is open to the public throughout the growing season. Also on display are over 300 perennials that are evaluated over the season for bloom, vigor, winter hardiness and general overall quality.
We would like to thank official supporters of our trial gardens: American Takii, Inc., Daehnfeldt, Inc., Ernst Benary of America, Inc., and Oglevee Ltd.. We hope the results from our trial gardens are beneficial in their research for new and improved cultivars.
Disclaimer: Reference to commercial products or trade names is made with the understanding that no discrimination is intended and no endorsement by NDSU or the North Dakota Agricultural Experiment Station is implied..
PLANT TRIAL RESULTS
|Neptune Blue (GS)||9-12||4-6||Blue - Good density of flowers|
|Think Pink (Gri)||6||12-16||Pale lavender - Flowers dense but faded|
|Cheers Mix (Gri)||6||12-16||Pink, white, lavendar - Dense flowers, faded|
|Bikini (Ben)||18||4||White - Dried plants, faded flowers|
|C. tinctoria (AHS)||24-30||12-18||Gold with bronze - 50/50 flowers to seeds on plant|
|Sonata Mixed (RS)||24||18-20||Pink, white, lavender - About half seed heads|
|Ideal Violet (AT, AAS)||6||4-6||Violet - Good Show|
|Princess Scarlet (GS)||4-6||9-12||Red - Flowers dense but faded|
|Manybloom Red (Gri)||6||4-6||Red - No vigor|
|Red Hots (Ogl)||6||6||Red - Flowers faded|
|Rose Orbit (GS)||4||6-9||Pink - Healthy plants|
|Rhynchelitrum repens - Ruby Grass (Ben)||36-40||36-40||Wispy red seed heads, nice dense foliage|
|Garden Bride (Da)||6-9||12||Pink - Dense, petite|
|Perfection Gold (GS)||18-20||12||Golden orange - Clean, clear flowers, foliage - Looks good!|
|Mont Blanc (AAS, AT)||4-6||6-12||White - Good show of flowers|
|Nigella sp.||24-30||12-16||Was seed heads only at this time|
|Floribunda - Celebrity Blue (Bod)||6-9||6||Deep purple - no vigor, poor|
|Floribunda - Celebrity Red (Bod)||12-16||12-16||Red - Good flower show|
|Grandiflora - Ultra Crimson Star (GS)||12-16||12-16||Burgundy and white - Poor, not many flowers|
|Grandiflora - Ultra Sky Blue (GS)||12||12-16||Pale blue - Looks good|
|Milliflora - Fantasy Blue (GS)||9-12||12||Deep purple - Dense|
|Milliflora - Fantasy Crystal Red (GS)||6-9||9-12||Red veins, light edges - Faded small flowers, weak|
|Multiflora - Prime Time Blue (GS)||16-18||9-12||Deep purple - Flower color okay but plant is leggy|
|Mulitflora - Prime Time Rose Frost (GS)||12-16||9-12||Hot pink with white edge - Looks okay but flowers are faded|
|Procumbent - Purple Wave (AAS)||6-9||12-18||Bright pinkish purple - Fantastic flower show|
|Sunnyside mixture (CI)||6||12-18||Red, yellow, salmon, pink - Good double flower|
|R. hirta 'Indian Summer' (AAS)||36-40||18-24||Gold - Outstanding show!|
|S. coccinea 'Lady in Red' (AAS)||24-36||24||Red - Flowers 98% gone at this time but plant is health|
|Snow Bouquet (AT)||24-36||18-20||White - Nice flower show|
|Royal Carpet Mixed (AT)||12||12||About half the flowers have gone to seed|
|Friendly Yellow (AT)||24-36||12-18||Yellow - Bright, clear, nice show!|
|Premium Blue (Gri)||24-36||10-12||Blue with white centers - deep color|
|Grape Cooler (Va)||6-9||9-12||Rose - Beautiful and healthy|
|Pretty in Rose (AAS)||6-9||9-12||Rose - Beautiful and healthy|
|Imagination (AAS, Ben)||12||18-20||Dense foliage - very healthy but few flowers at this time|
1995 BEDDING PLANT TRIAL RESULTS SEED SOURCE REFERENCE LIST*
|Code||Company Name and Address|
All America Selections
American Horticulture Society
American Takii, Inc.
Ball Seed Co.
Bodger Seeds, LTD
W. Atlee Burpee Co.
Ernst Benary of America, Inc.
Goldsmith Seeds, Inc.
G.S. Grimes Seeds
Park Seed Co.
Vaughn's Seed Co.