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Onopordum acanthium
Onopordum acanthium
Onopordum acanthium

Onopordum acanthium

  • Loved by Pollinators
  • Self-sows
  • Loved by Garden Birds
  • Naturalises
This grand native thistle can stand upwards of 8ft once fully developed, topped with a candelabra of mauve flowers that bees will adore.
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£5.50
156021
In stock
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Tried & tested by Sarah
Super productive variety
Easy to grow

A superb, statuesque feature plant

This grand native thistle can stand upwards of 8ft once fully developed. The biennial will form a dense rosette in its maiden year, felted with white down and spiny foliage. In the second year, the towering flower stem erupts from a base of large, silver, acanthus-like leaves, topped with a candelabra of mauve flowers that bees will adore.

  • Loved by Pollinators
  • Self-sows
  • Loved by Garden Birds
  • Naturalises

Product details

Type
Biennial or Short-lived Perennial
Position
Border (Back)
Soil
Neutral - Alkaline
Flowers
June - August
Height
3.0m (10ft)
Common name
Scotch Cotton Thistle
Moisture
Well-drained
Aspect
Full Sun
Spread
1.2m (4ft)
Cultivation
Sow in autumn or spring directly into the ground or in trays placed in a cold frame, unheated greenhouse or sheltered corner of the garden. Keep moist. Prick out seedlings when large enough. Plant into final positions in spring or autumn.

Care Tips

Will self-seed freely and can be transplanted elsewhere in the garden. Requires a sturdy stake or it will topple in strong winds.

Flowering Time

June - August

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