Native to the Mediterranean region of Europe and Asia, it has Reproduction: Milk thistle only reproduces and spreads by seed. [...] Due to Legal Status the heavy nature of the seeds, they are Classified as a “noxious weed” in all regions of British limited as to the distance they can travel Columbia by the Ministry of Forests under the BC Weed Control by wind and tend not to move far from the Act. [...] Economic: Milk thistle is toxic to They are alternate and livestock and outcompetes desirable clasping to the stem. [...] identification and inventory of invasive plant populations, » When removing Milk thistle, place the plants in bags for assessment of the risks that they pose, and development disposal. [...] » If a plant has already gone to seed, place the bag close to the plant and carefully cut off the seed heads into the bag Prevention: to prevent the spread of seeds.
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