Variegated thistle control option
  • Example of product names

  • Herbicide group

  • Application rate (with water unless indicated)

  • Situation

  • Timing

  • Comments

  • Legal status

Variegated thistle

Silybum marianum

Weed profile

  • Annual
  • Herb
  • Toxic to livestock
  • Habitat: pastures

Impact

Competes in pasture. Toxic. Spiny leaves.

Description

  • Annual or biennial to 2 m tall, all parts with sharp spines.
  • Basal rosette of deeply lobed leaves to 30 cm long, blotched with white veins.
  • Flower heads purple, 3-5 cm wide, in groups at top of erect leafy stems.

Control options

Legal requirements in each region

To find out which landscape region you're in visit the NatureMaps website.

Alinytjara Wiluṟara

Eyre Peninsula

Green Adelaide

Hills and Fleurieu

Kangaroo Island

Limestone Coast

Murraylands and Riverland

Northern and Yorke

South Australian Arid Lands

Page Last Reviewed: 06 Sep 2021
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