Mulch Calculator
Calculate how much mulch you need for your garden beds.
3 inches (7.5 cm) is the recommended depth for weed control
Amount Needed
Cubic Yards
1.9 yd³
(1.42 m³)
Bags (2 cu ft)
25
Approximate Cost (bulk)
$83 – $120
Delivery extra
Methodology & Notes
Calculation is: area (sq ft) x depth (in) / 12 = cubic feet, then divided by 27 for cubic yards. Standard bags are 2 cubic feet. Approximate bulk mulch prices in Montreal are $30-$65/cubic yard depending on type. Delivery not included.
Get an Accurate Free Estimate
These calculators provide rough estimates. For an exact price, call us or send photos of your project.
“I see homeowners pile mulch 6 inches deep thinking more is better — it's not. In Montreal's climate, 3 inches is the sweet spot. Thicker mulch traps moisture against stems and causes rot, especially during our wet springs.”
How to use this tool
Enter the length and width of your garden bed or the total area to be mulched. Select the desired mulch depth: 2 inches for annual top-ups, 3 inches for new beds, or 4 inches for weed suppression around trees and shrubs. The calculator converts your measurements into cubic yards and estimates how many bags you need from a garden centre, or how many bulk cubic yards to order from a landscape supplier.
Why it matters
Mulch is one of the most cost-effective landscaping investments for Montreal gardens. It suppresses weeds by blocking light, retains soil moisture during dry spells, and insulates plant roots against Quebec's harsh freeze-thaw cycles. Cedar mulch is the most popular choice in the Montreal market because it decomposes slowly, repels insects naturally, and maintains its colour for a full season. Applying the right depth matters: too thin and weeds push through, too thick and moisture cannot reach the soil.
Frequently Asked Questions
How much does mulch cost in Montreal per cubic yard?
In Montreal, bulk cedar mulch costs $45 to $65 per cubic yard delivered in 2026. Bagged cedar mulch at garden centres runs about $5 to $8 per 2 cu ft bag. For areas over 100 sq ft, bulk delivery is significantly cheaper.
When is the best time to apply mulch in Quebec?
The best time to mulch in Quebec is late May to early June, after the soil has warmed up. Mulching too early traps cold soil temperatures and delays plant growth. A 3-inch layer is ideal for new beds, while 2 inches refreshes existing mulch.
What type of mulch is best for Montreal gardens?
Cedar mulch is the most popular choice in Montreal because it decomposes slowly, repels insects naturally, and holds its colour all season. For vegetable gardens, compost mulch is better since it feeds the soil. Montréal Paysagement Pro installs all types — call 514-900-3867.