Family: Campanulaceae.
Origin: Caucasus.
Special Features: Tall and stately with branched flowering stems in white, rose, light-violet to blue.
Colour: White, rose, light-violet to blue.
Natural Flowering Period: June - August.
Winter Hardiness Zones: Z3-Z7.
Growth Habit: Erect but will need light staking in windy gardens.
Foliage: Medium-green rounded leaves with toothed edges.
Height with Flowers: 150 cm.
Spacing between Plants: 75 cm.
Soil Requirements: Evenly moist, well-drained soils preferred, pH 6.2 - 7.2.
Location: Full sun.
Specialities: Great cut flowers.
1,0 g = 30000 seeds.
Cultural Tips:
Grams per 1000 Seeds: 0,025
Seeds per Gram: 40000
Seeding Recommendation: 0,5 g / 1000 plants
Sowing Rate: 20 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. Do not cover the seed but tightly press into the earth. Keep in cooler conditions after germination occurs. The germination might be slower and more irregular. This poses no problems.
Scheduling:
Best Sowing Dates: Anytime
Sowing to Germination: 2 - 3 weeks
Germination to Transplant: 4 - 6 weeks
Transplanting to Salable Plant: 6 - 8 weeks
Cutting-Back at Transplanting: Cut-back 1-2 times; once at transplanting; once again 4 weeks later to keep more compact
Growing On:
Container Size(s): 1-2 plugs per 11/12 cm ; 2-3 plugs per 15 cm
Vernalization: A prudent recommendation would be to provide 6-12 weeks at an average daily temperature of 5°C. Exposure to cold may not be necessary for flowering but might improve quality.
Forcing: This species is not a suitable candidate for forcing.
Fertilization: Medium (150-200 ppm).