Since Ontario's cosmetic pesticide ban took effect in 2009, organic lawn care isn't just a preference — it's largely the law. But finding effective organic products can be frustrating. Many homeowners buy products that don't work, or don't know where to find the good stuff. Here's our guide to the best organic lawn care products and where to buy them in Ontario.
Best Organic Fertilizers Available in Ontario
Milorganite 6-4-0 Organic Fertilizer
$18-25 per bagThe gold standard of organic fertilizers. Slow-release, iron-rich, won't burn grass. Used by golf courses and professional lawn care companies. OMRI listed.
Available on Amazon.ca — search 'Milorganite Fertilizer Canada'. Also at select Home Depot locations.
CIL Golfgreen Organic Lawn Fertilizer 9-0-0
$22-28Canadian-made organic fertilizer from feather and bone meal. Safe for kids and pets immediately after application. Available at most Canadian Tire locations.
Available on Amazon.ca — search 'CIL Golfgreen Organic'. Widely stocked at Canadian Tire and Home Hardware across Ontario.
Acti-Sol Hen Manure Fertilizer 4-6-8
$15-22Quebec-made organic fertilizer from dehydrated hen manure. Excellent for gardens and lawns. Popular in Eastern Ontario. OMRI listed.
Available on Amazon.ca — search 'Acti-Sol hen manure fertilizer'. Also at garden centres across Ontario.
Organic Weed Control Products
Scotts EcoSense Weed-B-Gon (Iron-Based)
$15-20Iron-based broadleaf herbicide that's legal in Ontario. Kills dandelions, clover, and plantain without harming grass. Ready-to-spray bottle.
Available on Amazon.ca — search 'Scotts EcoSense Weed B Gon'. Also at Canadian Tire, Home Depot, and Lowe's.
Corn Gluten Meal (Pre-Emergent)
$25-40 per bagNatural pre-emergent weed preventer. Apply in early spring to prevent crabgrass, dandelion, and other weed seeds from germinating. Also adds nitrogen.
Available on Amazon.ca — search 'corn gluten meal lawn'. Also at garden centres and some Canadian Tire locations.
Where to Shop in Ontario
In-Store Options
- Canadian Tire — Largest selection of CIL Golfgreen organic products. Found in every Ontario city
- Home Depot — Carries Scotts organic line, Milorganite (seasonal), and corn gluten meal
- Home Hardware — Strong selection of Canadian-made organic products. Locally owned stores often carry regional brands
- Local garden centres — Best for specialized organic products, native plants, and expert advice. Often carry Acti-Sol and other boutique brands
- Costco — Seasonal bulk deals on Scotts products, including organic options
Online Options
- Amazon.ca — Widest selection, Prime delivery, competitive pricing. Best for Milorganite and specialty products
- Canadian Tire online — Order online, pick up in store same day
- Home Depot online — Full inventory available for delivery or store pickup
- GreenPlanet Wholesale — Specialty organic lawn care supplier based in Ontario
What 'Organic' Actually Means for Lawn Care
Look for products with OMRI (Organic Materials Review Institute) certification — this guarantees the product meets organic standards. Products labeled 'natural' or 'eco-friendly' without OMRI listing may still contain synthetic ingredients. In Ontario, any product legal for cosmetic lawn use is already free of the most harmful synthetic pesticides, but OMRI certification goes further.
Pro Tip: The best 'organic' weed control is a healthy, thick lawn. Proper mowing height (3+ inches), regular fertilization, and annual aeration do more to prevent weeds than any product you can buy.
Want professional organic lawn care without the hassle? Expert Property Care uses effective, Ontario-legal products as part of our complete lawn maintenance programs. We serve Georgetown, Brampton, Mississauga, Oakville, and the GTA. Contact us for a free lawn assessment.
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