OENOTHERA macrocarpa ssp. incana Silver Blade®

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OENOTHERA macrocarpa ssp. incana Silver Blade®

The Hoary Evening primrose
[Pewter Moon]
(missouriensis)
Select Item No. OA028

Also available as:

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: USA: Kansas, Oklahoma and Texas
Distinction: Plant Select, contact Plant Select for legal use of ® names.
Special Features: Beautiful, silvery foliage, reddish stems and large (ø10 cm), yellow saucer-shaped flowers. Very large flowering. Drought tolerant. Mat-forming though slightly more upright than the Missouri Evening Primrose, OENOTHERA missouriensis (macrocarpa).
 
Basic Colour: (yellow / gold)
Flower Colour: golden
Natural Flowering Period: June - September
Flowering: First year flowering
 
Winter Hardiness Zones: Z4 - Z8
Foliage: undulate, lanceolate, with thick covering of tiny silver hairs
Growth Habit: groundcover / mat-forming
Height with Flowers: 20 cm
Spacing between Plants: 30 cm
Soil Requirements: dry / well-drained
Location:
Characteristics: ornamental foliage plant
Usage: for the rock garden
Grams per 1000 seeds: 5.71429 Gram
Seeds per Gram
(does not correspond to the number of plants!):
175
Gram to get 1000 plants
(if sown directly into pots etc. you will need a larger quantity):
15 Gram
Sowing Rates/Trays: 2 - 3 per cell
Plug tray recommended size(s): 72 / 128
Sowing Direction:

(8) These perennial seeds germinate very irregularly over a long period. Lower temperatures of less than +5°C [41°F] are very effective. Seed trays should not be discarded prematurely. Constant moisture must be maintained. Do not leave in direct sunlight. For Alstroemeria we recommend to keep sowing for 3 weeks at approximately +30°C [86°F], then 3 weeks at +5°C [41°F], then at +21°C [70°F].

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: Not Necessary.
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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