OENOTHERA speciosa

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OENOTHERA speciosa

Pink Evening Primrose
[Silky, Pink Petticoats]
Select Item No. OA038

Available

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



Plant Description

Life Cycle: Perennial
Family: Onagraceae
Origin: Central USA
Special Features: This vigorous-growing, pink evening primrose produces dozens of large 5 cm saucer-shaped blossoms day and night. Drought tolerant, easy-to-grow selection. Very low maintenance perennial for tough landscape sites. Fragrant.
 
Basic Colour: (pink / salmon)
Flower Colour: soft pink
Natural Flowering Period: June - September
Flowering: First year flowering
 
Winter Hardiness Zones: Z5 - Z8
Foliage: oblong
Growth Habit: low-growing
Height with Flowers: 40 cm
Spacing between Plants: 40 cm
Soil Requirements: dry / well-drained
Location:
Characteristics: groundcover
Usage: for the rock garden
Grams per 1000 seeds: 0.16667 Gram
Seeds per Gram
(does not correspond to the number of plants!):
6000
Gram to get 1000 plants
(if sown directly into pots etc. you will need a larger quantity):
5 Gram
Sowing Rates/Trays: 2 - 3 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: 4 - 8 weeks
Germination to Transplant: 4 - 8 weeks
Transplanting to Potting: 6 - 10 weeks
Cutting back at Transplanting: Cut-back once to keep more compact.
Container Size(s): 1-2 plugs per 11/12 cm (4 1/2")
Vernalization: Some flowering will occur the first year without vernalization, but improved flowering will occur the 2nd year; and 3-10 weeks of cool temperatures might benefit fuller flowering in the first year.
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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