ASTER alpinus

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ASTER alpinus

Alpine Aster
Select Item No. AB020

Available

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



Plant Description

Life Cycle: Perennial
Family: Asteraceae
Origin: European Alps to Central Asia; and also to Alaska and Colorado in North America
Distinction: Award of Garden Merit (A.G.M.) from the Royal Horticultural Society.
Special Features: Easy-to-grow Award Winner.
 
Basic Colour: (blue)
Flower Colour: light blue
Natural Flowering Period: May - June
 
Winter Hardiness Zones: Z3 - Z7
Foliage: oblong
Growth Habit: erect / low-growing
Height with Flowers: 30 cm
Spacing between Plants: 30 cm
Soil Requirements: dry / well-drained / average
Location:
Characteristics: groundcover
Usage: for the rock garden / suitable for cutting
Grams per 1000 seeds: 1.42857 Gram
Seeds per Gram
(does not correspond to the number of plants!):
700
Gram to get 1000 plants
(if sown directly into pots etc. you will need a larger quantity):
5 Gram
Sowing Rates/Trays: 4 per cell
Plug tray recommended size(s): 128 / 288
Sowing Direction:

(15) Rapidly germinating, keep seed in constant moisture (not wet) with temperatures of about +20°C [68°F]. Seeds must be covered thinly. Do not cover very small seeds, but tightly press into the earth. Keep in cooler conditions after germination occurs.

Best Sowing Date
(northern Hemisphere, Field condition):
Anytime
Sowing to Germination: 2 - 3 weeks
Germination to Transplant: 4 - 6 weeks
Transplanting to Potting: 6 - 8 weeks
Cutting back at Transplanting: Cut-back once to keep more compact.
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: 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)
Jelitto · Seeds of more than 3700 different species and varieties

 

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