Id-Code: AA 610
Family: Ranunculaceae
Origin: Hybrid Origin
Special features: Long-spurred, coral-colored blossoms
History: Hybrid strain of the Colorado Columbine
Colour: Coral-colored shades with yellowish corolla
Natural Flowering Period: May - July
Winter Hardiness Zones: Z3-8
Growth Habit: Upright
Foliage: Compound leaves with 2-3 smooth, round leaflets
Height with Flower: 60 cm (24'')
Spacing between Plants: 45 cm (18'')
Soil Requirement: Well-drained soils, pH 5.8 - 6.8
Location: Full sun
Use: Plant in the rock garden or the border with Campanula punctata f. rubriflora, Digitalis 'Apricot' and Lychnis chalcedonica 'Carnea'
Specialities: Lovely, easy-to-grow, coral-colored seed strain
Cultural Tips:
Grams per 1000 seeds: 1
Seeds per Gram: 1000
Seeding Recommendation: 5 g / 1000 plants
Sowing Rate: 5 seeds per cell
Plug tray recommended size(s): 128, 288
Germination: Rapidly germinating, keep seed in constant moisture (not wet) with temperatures of about +20°C [68°F]. Seeds must be covered thinly. Keep in cooler conditions after germination occurs. The germination might be slower and more irregular. This poses no problems.
Scheduling:
Growing On:
Best Sowing Dates: Anytime
Sowing to Germination: 2 - 3 weeks
Germination to Transplant: 4 - 8 weeks
Transplanting to Salable Plant: 6 - 10 weeks
Cutting-Back at Transplanting: Not necessary
Container Size(s): 1-2 plugs per 11/12 cm (4 1/2''); 2-3 plugs per 15 cm (6'')
Vernalization: A prudent recommendation would be to provide 6-12 weeks at an average daily temperature of 40°F (5°C). Exposure to cold may not be necessary for flowering but might improve quality.
Forcing: An obvious place to experiment - following vernalization - would be raising daytime temperatures to 60° - 65°F (15° - 17°C). Provide 16 hours of continuous lighting. During the short days of winter, provide a night interruption lighting of 4 hours between 10:00 p.m. and 2:00 a.m.
Fertilization: Medium (150-200 ppm)
