CAMPANULA rotundifolia

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CAMPANULA rotundifolia

Scottish Bluebells, Harebells
Select Item No. CA226

Available

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



Plant Description

Life Cycle: Perennial
Family: Campanulaceae
Origin: Northern temperate regions all over the world.
Special Features: Easy to grow from seed and absolutely winter hardy.
Historical: Everyone wants to claim something so graceful as their own. The Scots refer to this as Bluebells of Scotland and in the USA this is known as the American Harebell.
 
Basic Colour: (blue)
Flower Colour: light blue
Natural Flowering Period: June - October
Flower: single
 
Winter Hardiness Zones: Z2 - Z7
Foliage: round lower leaves, upper leaves are lanceolate
Growth Habit: cushion / upright, erect / stoloniferous / vigorous, strong growing
Height with Flowers: 30 cm
Spacing between Plants: 25 cm
Soil Requirements: dry / well-drained / warm / undemanding
Location:
Usage: honey-bee food plant / for the rock garden / for green roofs / flowering pot plant
Grams per 1000 seeds: 0.06897 Gram
Seeds per Gram
(does not correspond to the number of plants!):
14500
Gram to get 1000 plants
(if sown directly into pots etc. you will need a larger quantity):
0.5 Gram
Sowing Rates/Trays: 8 per cell
Plug tray recommended size(s): 128 / 288
Sowing Direction:

(16) See 15 with the exception of germination being slower and more irregular. This poses no problems.

(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 - 4 weeks
Germination to Transplant: 3 - 4 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: 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)
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