ASCLEPIAS tuberosa

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ASCLEPIAS tuberosa

Butterfly Weed, Pleurisy Root, Silk Weed
Select Item No. AA984

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: Asclepiadaceae
Origin: North America
Special Features: A drought resistant cut flower with decorative seed pods. Do not allow the seedlings to become too root bound, they can suffer from over watering.
 
Basic Colour: (orange)
Flower Colour: orange
Natural Flowering Period: June - August
Flowering: First year flowering
 
Winter Hardiness Zones: Z3 - Z8
Foliage: dark green, hairy stems and leaves, lanceolate
Growth Habit: deep roots
Height with Flowers: 70 cm
Spacing between Plants: 60 cm
Soil Requirements: gritty / well-drained / rocky
Location:
Characteristics: decorative fruit / medicinal plant
Usage: suitable for cutting
Grams per 1000 seeds: 6.06061 Gram
Seeds per Gram
(does not correspond to the number of plants!):
165
Gram to get 1000 plants
(if sown directly into pots etc. you will need a larger quantity):
15 Gram
Sowing Rates/Trays: 2 per cell
Plug tray recommended size(s): 72 / 128
Sowing Direction:

(9) These seeds germinate rapidly depending on species and origin. If germination does not occur after 3–4 weeks a cooling period of 2–4 weeks is recommended.

Best Sowing Date
(northern Hemisphere, Field condition):
late autumn - early spring
Sowing to Germination: 4 - 6 weeks
Germination to Transplant: 2 - 4 weeks
Transplanting to Potting: 4 - 6 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") / 2-3 plugs per 15 cm (6")
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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