PRIMULA flaccida

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



Plant Description

Life Cycle: Perennial
Family: Primulaceae
Origin: West China: Pine forests.
Special Features: Dense clusters of nodding, blue-violet blossoms on short spikes. Hard-to-find rock garden species.
 
Basic Colour: (violet)
Flower Colour: blue-violet
Natural Flowering Period: May - August
Flowering: Second year flowering
 
Winter Hardiness Zones: Z5 - Z8
Foliage: fuzzy, 15 cm (6''), elliptic, narrow
Growth Habit: rosettes / clumping
Height with Flowers: 25 cm
Spacing between Plants: 25 cm
Soil Requirements: moist / peaty
Location:
Usage: for the rock garden
Grams per 1000 seeds: 0.04 Gram
Seeds per Gram
(does not correspond to the number of plants!):
25000
Gram to get 1000 plants
(if sown directly into pots etc. you will need a larger quantity):
0.25 Gram
Sowing Rates/Trays: 6 per cell
Plug tray recommended size(s): open flats / 72
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: 3 - 5 weeks
Germination to Transplant: 6 - 8 weeks
Transplanting to Potting: 6 - 8 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: 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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