Id-Code: CA 124
Family: Campanulaceae
Origin: Europe, Caucasus, Iran
Special Features: Clusters of 15 - 20 bell-shaped flowers
Colour: Bell-shaped white flowers
Natural Flowering Period: June - August
Winter Hardiness Zones: Z2-7
Growth Habit: Clumping
Foliage: Heart-shaped basal leaves, stem leaves are lanceolate
Height with Flowers: 30 cm (12'')
Spacing between Plants: 45 cm (18'')
Soil Requirements: Well-drained, alkaline soils preferred, pH 6.0 - 7.2
Location: Full sun to partial shade
Use: Plant together with Clematis integrifolia, Delphinium 'Blauer Zwerg' (Blue Dwarf) and Lavandula 'Hidcote Superior'
Specialities: Spreads quickly in good soils, good as a cut flower
Cultural Tips:
Grams per 1000 seeds: 0,091
Seeds per Gram: 11000
Seeding Recommendation: 1g / 1000 plants
Sowing Rate: 5 seeds per cell
Plug tray recommended size(s): 128 or 288
Germination: Rapidly germinating, keep seed in constant moisture (not wet) with temperatures of about +20°C [68°F]. 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:
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 plug per 8/9 cm (3 1/2''); 1-2 plugs per 11/12 cm (4 1/2'')
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)
