Id-Code: PA 578
Family: Primulaceae
Origin: Hybrid origin
Special Features: Vivid range of colors in this beautiful candleabra hybrid
Colour: Yellow to red and violet
Natural Flowering Period: June - July
Winter Hardiness Zones: Z3-8
Growth Habit: Clumping
Foliage: Ovate to lanceolate leaves
Height with Flower: 40 cm (16'')
Spacing between Plants: 40 cm (16'')
Soil Requirement: Moist soils, lime free, pH 5.2 - 6.2
Location: Full sun or partial shade in warmer climates
Use: Wonderful at the edge of a cool, woodland garden. Plant together with Arisaema triphyllum, Meconopsis betonicifolia and Vaccinium vitis-idea
Specialities: Also available as JELITTO GOLD NUGGET SEED^® (PG 758)

Cultural Tips:
Grams per 1000 seeds: 0,37
Seeds per Gram: 2700
Seeding Recommendation: 1 g / 1000 plants
Sowing Rate: 4-5 seeds per cell
Plug tray recommended size(s): 128 or 288
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. Colder temperatures of -5°C [23°F] are only advantageous for most species of the Ranunculus family. 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.

Scheduling:
Best Sowing Dates: November - March
Sowing to Germination: 4 - 8 weeks
Germination to Transplant: 4 - 8 weeks
Transplanting to Salable Plant: 6 - 10 weeks
Cutting-Back at Transplanting: Not Necessary

Growing On:
Container Size(s): 1-2 plugs per 11/12 cm (4 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: 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: Light (100-150 ppm)