Id-Code: DA 337
Family: Papaveraceae, Fumariaceae
Origin: Himalayas
Special Features: Climbing species with hanging yellow blooms
Colour: Yellow with reddish tips
Natural Flowering Period: June - August
Winter Hardiness Zones: Z4-7
Growth Habit: Vining
Foliage: Grey-green, fern-like leaves
Height with Flowers: 200 cm (78'')
Spacing between Plants: 90 cm (36'')
Soil Requirements: Evenly moist, cool soils, pH 5.5 - 6.8
Location: Partial shade
Use: Plant in dappled shade in the woodland garden with Aconitum nepellus 'Newry Blue', Anemonopsis macrophylla and Ligularia dentata 'Midnight Lady'
Specialities: 1st year flowering
Cultural Tips:
These species usually show excellent results if sown soon after the harvest, although most of them only germinate in spring after the effect of winter. For best results please order seeds in time.
Scheduling:
Growing On:
Grams per 1000 Seeds: 0,606
Seeds per Gram: 1650
Seeding Recommendation: 5 g / 1000 plants
Sowing Rate: 8-9 seeds per cell
Plug tray recommended size(s): Open flats
Germination: The sowing must be kept warm (about +18 to 22°C) [about 64 to 72°F] and moist for the first 2-4 weeks. After this period the sowing must be kept at a cold temperature (between -4 and +4°C) [between 25 and 39°F] for another 4-6 weeks. It is not so important if the temperature is higher or lower during the cooling period, but the cooling period has to be prolonged because the synthesis of the germination inducer, hormonlike acid, slows down or comes to a standstill.
It is beneficial to cover the sowing with snow during the cooling-period. The temperature below it usually keeps in the optimum range of -4 to 0°C [25 to 32°F]. The sowing is kept moist, and the melting snow helps to destroy the shell, which is advantageous for the germinating seedling. After this cooling-period the sowing may not be immediately exposed to high temperatures. The most effective temperatures are between +5 to 12°C [41 to 54°F], even if germination has started. The best location for this sowing, even in March, April and May, is the open field, the cold frame or a cold greenhouse.
Best Sowing Dates: Order seeds from fresh seed harvest
Sowing to Germination: 10 - 18 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'')
Vernalization: No vernalization required for flowering in the first year.
Forcing: 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. 6-8 weeks to flower.
Fertilization: Medium (150-200 ppm)