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ALLIUM christophii

Product 127 From 2745
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ALLIUM christophii

Star of Persia, Downy Onion
(albopilosum)
Select Item No. AA202

Quantitative Restriction

One Portion is usually sufficient for approx. 50 plants.
Please switch to gram for larger quantities.



Plant Description

Life Cycle: Perennial
Family: Alliaceae
Origin: Afghanistan, Iran and Turkey
Distinction: Award of Garden Merit (A.G.M.) from the Royal Horticultural Society.
Special Features: Intriguing 20-25 cm spheres consisting of innumerable of star shaped, lilac-colored flowers. Fantastic dried flowers.
 
Basic Colour: (violet)
Flower Colour: lilac
Natural Flowering Period: June - July
 
Winter Hardiness Zones: Z6 - Z10
Foliage: grey-green, linear, slightly hirsute underneath
Growth Habit: bulbous
Height with Flowers: 40 cm
Spacing between Plants: 45 cm
Soil Requirements: dry / sandy / gritty / well-drained / average / loamy
Location:
Characteristics: decorative fruit
Usage: honey-bee food plant / for the rock garden / suitable for cutting
Grams per 1000 seeds: 6.66667 Gram
Seeds per Gram
(does not correspond to the number of plants!):
150
Gram to get 1000 plants
(if sown directly into pots etc. you will need a larger quantity):
20 Gram
Sowing Rates/Trays: 6 per cell
Plug tray recommended size(s): open flats / 72
Sowing Direction:

(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.
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 Date
(northern Hemisphere, Field condition):
November - March
Sowing to Germination: 8 - 10 weeks
Germination to Transplant: 8 - 10 weeks
Transplanting to Potting: 8 - 12 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: A prudent recommendation would be to provide 6-12 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: 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.
Fertilizer: Light (100-150 ppm)
Jelitto · Seeds of more than 3700 different species and varieties

 

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