Id-Code: SB 257
Family: Dipsacaceae
Origin: Russia
Special Features: Shorter and more compact than the species
History: Introduced by Jelitto Perennial Seeds in 2007, selection from the University of Georgia (USA)
Colour: Light yellow
Natural Flowering Period: June - October
Winter Hardiness Zones: Z5-8
Growth Habit: Low-growing and compact mounds
Foliage: Fine pinnatifid foliage
Height with Flowers: 40 cm (16'')
Spacing between Plants: 30 cm (12'')
Soil Requirements: Well-drained soils, pH 5.8 - 7.2
Location: Full sun
Use: Plant in the rock garden, mixed containers or the front of the border with COREOPSIS auriculata 'Elfin Gold', GONIOLIMON 'Sea Spray' and STACHYS byzantina 'Silky Fleece'
Specialities: Good for cut flowers. Attracts honeybees, too
Cultural Tips:
Scheduling:
Growing On:
Grams per 1000 Seeds: 1,205
Seeds per Gram: 830
Seeding Recommendation: 5 g / 1000 plants
Sowing Rate: 4 seeds per cell
Plug tray recommended size(s): 128 or 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.
Best Sowing Dates: November - March
Sowing to Germination: 3 - 4 weeks
Germination to Transplant: 4 - 6 weeks
Transplanting to Salable Plant: 6 - 8 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''); 2-3 plugs per 15 cm (6'')
Vernalization: There is no current research on vernalization but a prudent recommendation for any perennial would be 6-12 weeks (a few might need 15 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)