Cotton Thistle

9cm Pot, Seed Packet, Wildflower Plugs

Onopordum acanthium. Tall plants with white cottony leaves and pale purple flowers. Also known as scotch thistle

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Latin Name: Onopordum acanthium

Common Name(s): Cotton Thistle

Plant Type: Biennial

Habitat: Dry, Sandy, Sun





Flowering Time:

June - September

SKU: NS-MAIN-3087 Categories: ,


Onopordum acanthium known as Cotton thistle or Scotch thistle It is a vigorous biennial plant with coarse, spiny leaves and conspicuous spiny-winged stems. The leaves of cotton thistle provide food for the caterpillars of some Lepidoptera.

It produces a large rosette of spiny leaves the first year. The plants typically germinate in the autumn after the first rains and exist as rosettes throughout the first year, forming a stout, fleshy taproot that may extend down 30 cm (12 in) or more for a food reserve.

Most seeds germinate in autumn after the first rains, but some seeds can germinate year round under favourable moisture and temperature conditions. Seeds that germinate in late autumn become biennials. But when they germinate earlier, they can behave as annuals

Additional information


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Country of Origin


Flowering Time

June, July, August, September


Plant Type


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