Id-Code: DA 426
Family: Primulaceae
Origin: Western North America
Special Features: Bright red flowers shaped like badminton shuttlecocks
History: Introduced by JELITTO PERENNIAL SEEDS in 1990
Colour: Bright red
Natural Flowering Period: May - June
Winter Hardiness Zones: Z4-8
Growth Habit: Tidy rosettes
Foliage: Smooth, oblong leaves
Height with Flower: 40 cm (18'')
Spacing between Plants: 25 cm (10'')
Soil Requirement: Evenly moist, humus rich soils,
pH 6.2 - 7.2
Location: Partial shade
Use: Outstanding in the shade garden with Corydalis lutea, Geranium pratense 'Mrs. Kendall Clark' and Heuchera 'Dale's Strain'
Specialities: Good cut flowers. Also available as JELITTO GOLD NUGGET SEED® (DG 426)
Cultural Tips:
Grams per 1000 seeds: 0,357
Seeds per Gram: 2800
Seeding Recommendation: 2 g / 1000 plants
Sowing Rate: 5 seeds per cell
Plug tray recommended size(s): 72s or open flats
Germination: These seeds germinate rapidly depending on species and origin. If germination does not occur after 3-4 weeks a cooling period of 2-4 weeks is recommended.
Scheduling:
Growing On:
Best Sowing Dates: November - March
Sowing to Germination: 8 - 10 weeks
Germination to Transplant: 6 - 8 weeks
Transplanting to Salable Plant: 8 - 12 weeks
Cutting-Back at Transplanting: Not necessary
Container Size(s): 1 plug per 8/9 cm (3 1/2'')
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: Early spring flowering. No forcing necessary.
Fertilization: Light (100-150 ppm)
