Giant Hogweed

Giant Hogweed is an invasive, non-native plant that poses a serious threat to human health and natural ecosystems.

Characteristics of Giant Hogweed

  • It can reach up to six metres in height
  • It has hollow stems that may be five to 10 centimetres in diameter with dark red-purple splotches and coarse white hair
  • The leaves of the plant can grow over one metre in width and have hairs on the underside
  • The plant also produces flattened oval shaped fruit and numerous white flowers clustered in an umbrella shape form
  • Giant Hogweed is sometimes confused with similar harmless plants such as cow parsnip, angelica and Queen Anne's lace

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26557 Civic Centre Rd,
Keswick, ON  L4P 3G1

T: 905-476-4301 / 705-437-2210
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