Noxious Weeds & Invasive Plants

What are Noxious Weeds?
Noxious weeds, also called invasive plants, are non‑native plant species that invade our ecosystems and out-compete local plants and cultivated crops for water, nutrients and light. Highly adaptable and difficult to control, these invasive plants grow aggressively without the insect predators and plant diseases that kept them in check in their native habitats.

Identifying Noxious and Invasive Weeds

Please check out BC Invasives for colour photos and descriptions of noxious and invasive weeds. For factsheets with more information regarding Scotch Thistle and other noxious weeds please visit

Impacts of Invasive Plants

  • Rapidly displace native plant species that provide habitat for wildlife, and food for people and livestock.
  • Pose a threat to rare ecosystems.
  • Increase the frequency of wildfires and reduce survival rates of native species following fire.
  • Along waterways, may result in erosion, sedimentation and loss of aquatic habitat.

What You Can Do
The Weed Control Act of BC and the Weed Control Regulation imposes a duty on landowners to control noxious weeds. Without widespread cooperation and a commitment by individuals to address the problem, efforts of weed programs can only have limited success. Please do your part by learning more about invasive plants and get actively involved, for the sake of our environment and economy. Together, we can make a difference!

Report-a-weed Mobile App
Now anyone in BC can easily submit invasive plant sites - simply choose from two easy ways to report invasive plants electronically - fast, easy and effectively. Your report will be reviewed by an invasive plant specialist in your area, who will coordinate follow-up activities with the appropriate local authorities.  You may also report an invasive plant by calling 1-888-WEEDSBC.

How to Contact

For further information about noxious weeds, please contact the District of Coldstream at 250-550-1510 or by email at

We appreciate the cooperation of all residents in reducing and eradicating noxious weeds in our community.




The District of Coldstream
9901 Kalamalka Road
Coldstream, BC V1B 1L6
Tel: (250) 545-5304
Fax: (250) 545-4733
Hours of Operation:
Monday to Friday
8:00 am - 4:30 pm
Closed on Statutory Holidays
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