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How to dispose noxious weeds

A-Z Listing

 Weeds - noxious

Put small quantities of bagged prohibited noxious weeds directly into the black cart as garbage.

Special instructions:

  • Noxious weeds must be bagged and tied closed to prevent seeds from spreading
  • The bagged noxious weeds must fit inside of the black cart. Make sure the lid can be pulled over. Bags of yard waste set beside the cart will not be collected.

Large quantities of noxious weeds

Take large quantities of prohibited noxious weeds to a City landfill for disposal. Landfill charges will apply.

Special instructions

  • Prohibited Noxious weeds must be bagged and tied closed to prevent seeds from spreading.
  • Your load must only contain noxious weeds as this material must be disposed of in a separate section at the landfill. 

Below are prohibited noxious species common to Calgary:

  • Blueweed
  • Canada thistle
  • Common tansy
  • Diffuse knapweed
  • Leafy spurge
  • Nodding thistle
  • Lythraceae
  • Scentless chamomile
  • Spotted knapweed
  • Toadflax

View a full list of invasive species common to Calgary that must be disposed at the landfill.

Why can’t noxious weeds be composted?

These invasive and prohibited species can aggressively spread during transportation and processing at the composting facility. By taking these troublesome species to the landfill we maintain high compost quality and reduce the spread of noxious weeds in our community.

Landfill locations listed below: