POTENTILLA atrosanguinea var. argyrophylla 'Scarlet Starlit'

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POTENTILLA atrosanguinea var. argyrophylla 'Scarlet Starlit'

Himalayan Cinquefoil
Select Item No. PA574

Available

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



Plant Description

Life Cycle: Perennial
Family: Rosaceae
Origin: Species can be found in cool sub-alpine meadows from Afghanistan to Southwestern China.
Special Features: Deep scarlet saucers and luxurious grey-green leaves. Large flowering. Outstanding foliage plant.
Historical: Introduced by JELITTO PERENNIAL SEEDS in 2009. Plant parts have been used traditionally for treatment of colds.
 
Basic Colour: (red / scarlet / purple)
Flower Colour: bright pure scarlet red
Natural Flowering Period: June - August
 
Winter Hardiness Zones: Z5 - Z8
Foliage: 3 segmented, grey green, margins precisely toothed, glossy, silky hairy foliage, white tomentose beneath
Growth Habit: compact / dense
Height with Flowers: 30 cm
Spacing between Plants: 30 cm
Soil Requirements: moist
Location:
Characteristics: ornamental foliage plant
Usage: for the rock garden
Grams per 1000 seeds: 0.42553 Gram
Seeds per Gram
(does not correspond to the number of plants!):
2350
Gram to get 1000 plants
(if sown directly into pots etc. you will need a larger quantity):
1 Gram
Sowing Rates/Trays: 2 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 - 3 weeks
Germination to Transplant: 4 - 6 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)
Jelitto · Seeds of more than 3700 different species and varieties

 

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