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Genus: Cirsium
Species: heterophyllum
Family Name: Compositae/Asteraceae
Seed Catalogue No.: 349F
English Name(s): Melancholy Thistle, Plumed Thistles
Hardiness: Hardy
Lifecycle: Perennial
Suitable for: Cut Flowers
Colour: Purple/Lavender
Flowers: July, August
Lighting Conditions: Full Sun, Partial Sun
Soil Type: Chalk, Sand, Loam
Soil Acidity: Alkaline, Neutral, Acid
Moisture: Wet
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Germination Instructions
Sow indoors before the last frost, under glass in winter, directly in autumn. Indoors/ under glass sow 3mm deep into moist, well-drained seed compost. Ideal temp. 20-22°C. Germination takes 15-18 days approx. If germination does not occur cold stratify, move to -4-+4°C for 2-4 weeks then return to warmth for germination. Acclimatise and plant out after danger of frost has passed. Directly, sow into prepared soil, allow natural winter cold to offer ideal conditions for germination to occur in spring as the weather warms.
Growing Instructions
Prefers a moist-wet soil in full or partial sun. Can tolerate some dryness in partial sun.
Cultivation Instructions
Will self-seed freely. Deadhead if you do not want volunteer seedlings next season.
When to Sow
Approximate number of seeds per packet: 85
Please note we pack the majority of our seeds by volume so the number of seeds indicated is only an approximation.
Cirsium heterophyllum
