Invasive Species

Invasive plants are non-native plants that were introduced to our environment through seeds, cuttings, garden plants, etc. that spread aggressively and take over the natural environment. They out-compete native plants, including endangered species, and destroy habitat for fish, birds and other wildlife. They can also cause erosion and silt problems in creeks and impact aquatic creatures. Invasive plants are expensive to control and eradicate. Some, like Giant Hogweed, are even dangerous to human health.

Quite simply, they are "Bad Seeds".

Prevent the Spread of Invasive Species

  • Avoid buying plants promoted as fast spreaders or vigorous self-seeders as they are often invasive.
  • Contain or remove invasive plants on your property to prevent them from spreading to other properties.
  • Dispose of invasive plant material in your Green Cart instead of your backyard compost (see below for hogweed disposal requirements).
  • Never dump garden waste, hanging baskets or anything else into natural areas.
  • Refer to the Invasive Species Council of BC’s  Grow me Instead Guide and visit the Native Plant Society of British Columbia’s website to learn about BC’s 'most wanted' plants, along with recommended alternatives.
  • Use caution when ordering plant seeds over the Internet or through catalogues. Introducing foreign seeds are a key way that invasive plants find their way into our community.

Common Invasive Plant Species

  1. English Ivy
  2. Giant Hogweed
  3. Morning Glory
  4. Japanese Knotweed
  5. Periwinkle
  6. Yellow Lamium (Yellow Archangel)
  7. More Resources

Commonly sold as an easy and fast grower that can tolerate shade, English ivy (Hedera helix) smothers vegetation and can eventually kill trees.

English ivy is identified by dull, green, lobed leaves with a thick, waxy coating that stay green all year long. It grows as a small to large woody vine that clings to surfaces such as trees, buildings and rocks.

View the Metro Vancouver Best Management Practices for English and Irish Ivies (PDF).

English Ivy

Volunteer Opportunities

Are you interested in becoming a Bad Seed volunteer? 

If you have a group interested in organizing an invasive plant pull with the City, please email the Natural Areas team. If you are an individual looking to join a scheduled invasive plant pull, register with Better Impact and watch for upcoming Bad Seed events.

Bad Seed & The Coastal Painted Turtle Project 

Mundy Park and other locations in Coquitlam are home to the endangered Western Painted Turtle. These creatures face a variety of threats in the urban environment including road mortality, habitat loss and competition with invasive species. 

Join the Coastal Painted Turtle Project and Coquitlam’s Bad Seed team to learn more about this important species and get involved in conservation efforts! 

We are seeking volunteers to monitor nesting turtles over the spring and summer.  This project supports turtle populations through habitat enhancement/restoration, a turtle rearing and head start release program, and ongoing monitoring and research. 

Next session: May 18, 10 – 11 a.m. at Mundy Park
After the training session is completed, volunteers will be equipped to visit known habitat areas, observe turtles, and report their observations throughout the season. 

For more information or to register email or call 604-927-6296.

For more volunteer opportunities, contact local community groups: