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|Special Features:||Seed strain with red blossoms. An easy-to-grow selection for the bog garden.|
|Basic Colour:||(red / scarlet / purple)|
|Winter Hardiness Zones:||Z3 - Z8|
|Foliage:||narrow, sword-like, medium-green|
|Growth Habit:||upright, erect|
|Height with Flowers:||70 cm|
|Spacing between Plants:||45 cm|
|Soil Requirements:||boggy / average|
|Usage:||water or marshplant|
|Grams per 1000 seeds:||15.38462 Gram|
|Seeds per Gram
(does not correspond to the number of plants!):
|Gram to get 1000 plants
(if sown directly into pots etc. you will need a larger quantity):
(1) Cold-germinators are still referred to as frost-germinators, 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, hormon-like acid, slows down or comes to a standstill.
(10) For these bigger hard-shelled seeds, mechanical damaging of the shell is helpful for quicker swelling. One method is to grind the seed in dry sharp sand. They can also be treated for several hours in a “softener” (Polyethylenglycol 6000), which is used for the production of plastic material.
|Best Sowing Date
(northern Hemisphere, Field condition):
|late autumn - early spring|
|Sowing to Germination:||10 - 16 weeks|
|Germination to Transplant:||6 - 8 weeks|
|Transplanting to Potting:||8 - 10 weeks|
|Cutting back at Transplanting:||Not Necessary.|
|Container Size(s):||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.|
|Fertilizer:||Medium (150-200 ppm)|