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Community composters

Community composter The Ville de Saint-Lambert wants to encourage composting on its territory to reduce the garbage that ends up in landfill sites. To help reach this goal, which is part of the City’s sustainable development plan, four composting sites are now available for you to use: 

  • at Saint-Denis Park: near the parking lot on Fort Avenue;
  • at Lespérance Park: near the community gardens;
  • at Préville Park: near the tennis courts alongside Simard Boulevard; 
  • at Alexandra Park: near the tennis courts alongside Regent Street. 

Advantages of composting

By composting, you are helping protect the environment:

  • Reduction at the source: You cut down the amounts of garbage sent to landfill sites.
  • Better air quality: Less organic waste means less CO2 due to garbage truck traffic and less methane generated by decomposing matter at landfill sites. 
  • Re-use: Your organic waste is transformed into a nutrient-rich natural fertilizer. 

Four basic composting rules

  1. Cut into small pieces: Cutting food scraps up into small pieces before adding it to the compost helps it decompose faster. 
  2. Aerate: Oxygen is vital to the living organisms that break organic matter down, so it’s important to aerate your compost. 
  3. Ensure proper moisture levels: Lack of water can slow down the decomposition process, while too much water can produce nasty odours and reduce the amount of oxygen available. 
  4. Ensure a proper balance of carbon and nitrogen: Too much nitrogen-rich “green matter” promotes the formation of foul-smelling gases, while too much carbon-rich “brown matter” prevents composting from starting and slows down the decomposition process. 

Pelure de banane

What can you compost?

To ensure good-quality compost and prevent unpleasant odours, only plant waste from gardens and food scraps will be accepted.

Help us ensure efficient composting by respecting the different types of matter accepted and refused, and by cutting everything into small pieces before adding it



Green matter

  • Fruits and vegetables (and their peels)
  • Crushed egg shell
  • Fresh garden residue

Brown matter

  • Bread, pasta, rice (with no sauces or gravy)
  • Tea leaves and bags, coffee grounds and filters
  • Peanut shells
  • Hay and straw
  • Dry, dead leaves
  • Paper towelling (free of chemical products)
  • Shredded paper (no staples)
  • Earth (rich in minerals)
  • Meat, fish, grease and bone
  • Oyster and clam shells, seafood shells
  • Milk products
  • Sauces and dressings
  • Peach and avocado stones, etc.
  • Shells of very hard nuts (walnuts, hazelnuts, almonds, etc.)
  • Animal droppings
  • Roots
  • Weed seeds or creepers
  • Sick plants or leaves
  • Wood ash

How can you access a community composter?

To use a community composter, simply contact the Green Squad at 450 466-3199 or at After a short training session on composting, you will be given a key to access the composter of your choice.

CompostYou will be rewarded!

The compost produced will be given to participating residents to fertilize their vegetable gardens or flower beds. Compost makes an excellent, nutrient-rich natural fertilizer. 

Want to get more involved?

This community composting project has succeeded thanks to your participation and your willingness to do the right thing for the environment. Community involvement is also essential to ensure that everything runs well. That’s why the Environment Division is looking for volunteers to oversee the activities at each of the composting stations. 

The volunteers’ tasks take no more than a few minutes a week and can be performed during your usual visits to the composter. 

  • Aerate and water the compost, as needed;
  • Remove all contaminants (e.g.: plastic bags, fruit pits and other materials that are not accepted); 
  • In the case of recurring problems, get in touch with us so that we can inform the other participants (e.g.: presence of contaminants, pieces too big, mould, odours, etc.);
  • Let us know when the compartment currently in use is full so that we can switch round the locks. 

Interested participants are asked to contact the Environment Division at 450-466-3199 or at