CAMPANULA alpestris

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CAMPANULA alpestris

Bellflower
(allionii)
Select Item No. CA064

Available

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



Plant Description

Life Cycle: Biennial
Family: Campanulaceae
Origin: Southwestern European Alps: screes.
Special Features: Large flowering. CAMPANULA alpestis is easy to cultivate, keep it cool and with low fertilization. Nice bell shaped flowers, blue to purple-violet, horizontal or upward 4cm long.
 
Basic Colour: (white / cream / blue)
Flower Colour: blue or white
Natural Flowering Period: July - August
 
Winter Hardiness Zones: Z4 - Z8
Foliage: simple, linear to lanceolate, dark green.
Growth Habit: mat-forming / stoloniferous / low-growing
Height with Flowers: 5 cm
Spacing between Plants: 10 cm
Soil Requirements: well-drained / rocky / average / cool / undemanding
Location:
Usage: for the rock garden
Grams per 1000 seeds: 0.28571 Gram
Seeds per Gram
(does not correspond to the number of plants!):
3500
Gram to get 1000 plants
(if sown directly into pots etc. you will need a larger quantity):
1 Gram
Sowing Rates/Trays: 3 - 5 per cell
Plug tray recommended size(s): 128
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.

Cutting back at Transplanting: Not Necessary.
Container Size(s): 1 plug per 8/9 cm (3 1/2")
Fertilizer: Light (100-150 ppm)
Jelitto · Seeds of more than 3700 different species and varieties

 

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