Id-Code: AA 541
Family: Apiaceae, Umbelliferae
Origin: Europe, West Asia and North Africa
Special Features: Fern-like leaves that are colored bronze-purple
Colour: White umbels
Natural Flowering Period: April - July
Winter Hardiness Zones: Z6-9
Growth Habit: Bushy
Foliage: Decorative foliage
Height with Flower: 60 cm (24'')
Spacing between Plants: 45 cm (18'')
Soil Requirement: Evenly moist but well-drained soils, pH 5.8 - 6.8
Location: Full sun to partial shade
Use: Great in the front of the border, or containers, with Salvia argentea, Campanula rotundifolia 'White Gem' and Dianthus amurensis
Specialities: White flowering umbels might be used in floral arrangements

Cultural Tips:
Grams per 1000 seeds: 8,333
Seeds per Gram: 120
Seeding Recommendation: 15 g / 1000 plants
Sowing Rate: 2 seeds per cell
Plug tray recommended size(s): 128s or open flats
Germination: Cold-germinaters are still referred to as frost-germinaters, although this isn't quite correct. 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.