Sonchus oleraceus

Milk thistle

Other common names:

Sow thistle or sowthistle.



  • Family: Asteraceae
  • Rosette leaves
  • Deeply lobed soft thin leaves with small soft spines
  • Yellow daisy on a hollow stem, exuding latex if damaged
  • Year round flowering
  • Seedling emergence favoured by wet conditions
  • Deep tap root
  • Spread by seed only
  • Annual weed.


Susceptible Turf:

Warm-and cool-season turfgrasses.


Control options:

  • Pesticides: See available tabs below for registered products. Use as per label instructions.
  • Integrated Pest Management (IPM): Use a combination of approaches listed on this page.
  • Cultural: Routine mowing.
  • Mechanical: Hand removal of weeds before they seed.



Turf Finder or its developer accepts with no responsibility for any consequences whatsoever resulting from the use of any information or product(s) listed herein. Products are to be applied as per label instructions.

Control Options

Lawn Solutions Australia All Purpose Weed Control


Surefire Buffalo, Bindi & Broadleaf Weedkiller


Yates Buffalo Pro Weed 'n' Feed Hose-On


Yates Weed 'n' Feed Granular


Yates Weed 'n' Feed Hose-On


Surefire Buffalo, Bindi & Broadleaf Weedkiller