Hence the move to make similar use of this closely related and much more common species. As sow thistle can grow up to 1 m tall, it can be quite a competitive weed. It gets its common name from being ...

Winged thistle is a winter annual, which means it generally establishes from seed in autumn, grows as a typical thistle ... MCPB can be used on young rosettes, or else 2,4-D or MCPA on older plants.