Id-Code: AA 112
Family: Campanulaceae
Origin: East central and East Europe to Siberia and Manchuria
Special Features: Beautiful, fragrant blue bells on tall stems
Colour: Pastel blue-purple
Natural Flowering Period: July - August
Winter Hardiness Zones: Z3-7
Growth Habit: Basal leaves, producing upright flowering panicles
Foliage: Deep green, rounded basal foliage, lanceolate stem leaves
Height with Flower: 100 cm (40'')
Spacing between Plants: 45 cm (18'')
Soil Requirement: Moist, well-drained soils, pH 5.8 - 6.8
Location: Full Sun
Use: Plant in a permanent spot in the border with Phlox paniculata 'New Hybrids', Veronica spicata 'Alba', and Echinacea tennesseensis 'Rocky Top Hybr.'
Specialities: Cut the fragrant flowers for indoor use

Cultural Tips:
Grams per 1000 seeds: 0,172
Seeds per Gram: 5800
Seeding Recommendation: 1 g / 1000 plants
Sowing Rate: 5-6 seeds per cell
Plug tray recommended size(s): 128, 288
Germination: These perennial seeds germinate very irregularly over a long period. Lower temperatures of less than +5°C [41°F] are very effective. Seed trays should not be discarded prematurely. Constant moisture must be maintained. Do not leave in direct sunlight.

Scheduling:
Best Sowing Date: November - March
Sowing to Germination: 4 - 6 weeks
Germination to Transplant: 4 - 8 weeks
Transplanting to salable Plant: 6 - 10 weeks
Cutting-Back at Transplanting: Cut-back once to keep more compact

Growing On:
Container Size(s): 1 plug per 8/9 cm (3 1/2''); 1-2 plugs per 11/12 cm (4 1/2'')
Vernalization: Some flowering will occur the first year without vernalization, but improved flowering will occur the 2nd year; and 3-10 weeks of cool temperatures might benefit fuller flowering in the first year.
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)