Invasive Plants

Invasive plants are non-native plants that have been introduced into our environment that adversely affect local habitat. Many invasive plants have been introduced to British Columbia without their natural predators and pathogens that would otherwise keep their populations in check.

Invasive plants can have negative impacts on:

Economy

  • Lower property value
  • Increase landscape management costs in parks and natural areas
  • Cause property and infrastructure damage

Environment

  • Crowd out native plants
  • Effect soil fertility and disturbance
  • Disturb ecosystem balance
  • Destroy wildlife habitat
  • Reduce soil stability & water quality

Society

  • Endanger humans, pets, livestock and wildlife
  • Reduce aesthetics of an enjoyable landscape
  • Reduce functional use of outdoor space

Top Invasive Plants:

Invasive Knotweeds

Invasive Knotweeds

English Ivy

English Ivy

Himalayan Blackberry

Himalayan Blackberry

Scotch Broom

Scotch Broom

Lamium

Lamium

Periwinkle

Common Periwinkle

Policeman's Helmet

Policeman’s Helmet

English Holly

English Holly

Giant Hogweed

Giant Hogweed

Giant Hogweed is an invasive plant and it can pose a serious threat to human health and natural ecosystems. The sap of Giant Hogweed causes phytophotodermatitis in humans, which can result in burns and blisters. Giant Hogweed has been observed in Port Coquitlam and the City wants to ensure it does not become a widespread community concern.

Learn More: Giant Hogweed (pdf)

Removing English Ivy

Join Scott, from our Parks Department, as he walks you through how to remove English Ivy safely from your trees. 

Video Length: 1 min 44 sec

What Can You Do About Invasive Plants?

Educate
  • Learn about the potential invasiveness of new species before you seed or plant them
  • Increase awareness as to the identification of invasive plants and their impacts
  • Educate yourself and your neighbours about invasive plant species in your community
Stop the Spread
  • Know what you grow and avoid planting aggressive species
  • Dispose of waste appropriately at your local landfill or compost if appropriate for that species
  • Contain or remove invasive species in your yard
  • Control weeds growing underneath bird feeders
  • Do not put invasive cuttings in your compost
  • Stay on established trails while hiking
  • Volunteer with stewardship groups holding invasive species removal events in your community

Click here to help stop the spread of invasives.

Plant Alternatives
  • Use native plants in your yard in place of invasive plants
  • Choose plants wisely and grow appropriate non-invasive alternatives. Be suspicious of plants promoted as “fast spreaders” or “vigorous self-seeders.
Download: Stop The Spread (pdf)