10 Best Weed Killer In Canada

Last updated on 28-02-2026

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Best Choice

9.9

Convenient large-size jug.
Fast-acting rainproof formula.
Odorless weed control.

Main Highlights

Fiesta Weed Killer

Finalsan Non-Selective Weed, Grass, Moss & Algae Killer Concentrate, 4 L – Fast-Acting Herbicide

Why we love it

Fast acting and rainfast.
Soil safe and biodegradable.
Versatile around plants and surfaces.

Main Highlights

Fast-Acting, Non-Selective Weed Control: Quickly eliminates unwanted grasses, weeds, moss, algae, and lichen on contact for visible results within hours
Rainfast in 3 Hours: Formulated to withstand rainfall shortly after application, ensuring reliable performance without weather concerns
Soil-Safe & Biodegradable: Leaves no harmful residue in the soil, making treated areas safe for replanting grass, flowers, or vegetables
Ammonium Soap of Fatty Acids (22.10%): Made with a non-staining, ammoniated fatty acid formula-no harsh synthetic chemicals
Versatile Garden Use: Ideal for use around ornamental flowers, mature shrubs and trees, garden borders, bark mulch, planters, raised beds, and containers
Hard Surface Application: Effective on roofs, decks, patios, bricks, walkways, driveways, and cement without staining
Year-Round Effectiveness: Usable in all seasons, including cool weather, for consistent weed control throughout the year
Safer for Homes & Landscapes: Once dry, treated areas are safe for people and pets to re-enter

2 Litre ORTHO KILLEX Lawn Weed Killer Concentrate, 2-Pack Bundle

Why we love it

Controls over 50 lawn weeds.
Safely protects your grass.
Perfect for large areas.

Main Highlights

🟢 Controls over 50 different lawn weeds including dandelions, plantains, clover, creeping charlie and ragweed.
🟢 Won’t harm your grass.
🟢 Suitable for controlling weeds in large areas.
🟢 2L Covers 1600 sq. m.
🟢 Use with Scotts Dial ‘n Spray Multi-use Hose-end Sprayer.

Ready-to-Use Lawn Weed Control, with Wand Applicator, 4-L

Why we love it

Effective against various lawn weeds.
Preserves your grass health.
Perfect for larger areas.

Main Highlights

✅ Controls over 50 different lawn weeds, including dandelions, plantains, clover, creeping charlie and ragweed
✅ Won’t harm your grass
✅ Convenient Pull ‘n Spray Applicator
✅ Suitable for controlling weeds in large areas
✅ 4 L (1.06 gallon) format is ideal for larger areas, and is an easy way to control lawn weeds
✅ Covers 250 sq. m

Advanced Grass & Weed Control Ready2Use - PumpandGo, 5L, Jug

Why we love it

Ready to use immediately.
Controls weeds around gardens.
Leaves no harmful residue.

Main Highlights

🟧Ready 2 use
🟧Controls undesirable weeds and grasses in and around gardens, around buildings, sidewalks, driveways, patios and walkways.
🟧Acetic acid rapid burndown formula ensures visible results after spraying.
🟧Actively growing susceptible weeds controlled within 1-2 days.
🟧Leaves no harmful residue in the soil.
🟧Suitable for use in and around vegetable gardens and other edible plants

4L Grass & Weed Control Refill – Ready-to-Use Non-Selective Herbicide for Spot Treatment and Outdoor Hard Surfaces

Why we love it

Convenient 4L refill format.
Ready-to-use, no mixing needed.
Fast-acting results in hours.

Main Highlights

✅ 4L Refill Format: Designed to replenish existing sprayers—no mixing required.
✅ Ready-to-Use Formula: Pre-diluted and ready for immediate application.
✅ Non-Selective Herbicide: Kills all vegetation it contacts—ideal for hardscapes and garden edges.
✅ Fast-Acting Results: Visible control typically begins within hours.
✅ Versatile Outdoor Use: Use on patios, walkways, driveways, gravel paths, and around fences.
✅ Compatible with Sprayers: Works with most trigger, pump, and wand sprayers.

Ortho KILLEX Lawn Weed Killer Concentrate, 1L

8% Off

Why we love it

Maximized coverage formula.
Targets 50+ weeds.
Lawn-friendly solution.

Main Highlights

Ortho Killex Concentrated formula provides maximum coverage for more widespread weed infestations
Controls over 50 different lawn weeds including dandelions, plantains, clover, ground ivy (creeping Charlie) and ragweed
Won’t hurt your lawn!
Mix 6 mL per litre of water to treat 5 square metres (50 square feet).
Herbicide pour la pelouse, Wipe Out Weeds effectively!

Round Up with Wand 2L

7% Off

Why we love it

Controls various green growths.
Offers multiple spray options.
Delivers fast visible results.

Main Highlights

✅ Controls virtually anything green and growing, including most annual and perennial grasses, broadleaf weeds and brush.
✅ 2 L (33.81 oz.)
✅ Use to edge lawns, control patio weeds, renovate lawn and garden spaces and control brush in hard-to-mow areas
✅ Fast-acting formula
✅ Active Ingredient: 7 g/L Glyphosate (present as isopropylamine salt).
✅ Visible results in up to 24 hours
✅ Choose between spray patterns: visible FastAct foam or streaming liquid.

Ortho KILLEX Lawn Weed Killer, 1L Ready-to-Spray

Main Highlights

ORTHO KILLEX Lawn Weed Killer, 1L Ready-to-Spray

Scotts Weed B Gon Max Ready-to-use Weed Control with Quick Connect Sprayer 2L

Why we love it

Controls a wide variety of weeds.
Formulated to protect your lawn.
Visible results within hours.

Main Highlights

Controls a range of lawn weeds, including dandelion, white clover, common chickweed, creeping buttercup, and more*
Formulated with chelated iron to kill weeds, not lawns.
Susceptible weeds turn brown or black with visible results within several hours
Rainproof in 3 hours; visible results within several hours
2 L (67.63 oz) ready-to-use formula

8.8

Excellent

We scanned 687 products

We reviewed these offers relevant to the Weed Killer within online retailers such as Amazon, eBay and other local retailers, ensuring we covered all major brands and models. The products we selected come from trusted brands like Neudorff, Ortho Killex, Generic, Killex, Roundup, VORAGA, Scotts, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.

For the best Weed Killer in the market, we considered we took a deep dive into 3436 online reviews , focusing on elements like user satisfaction, performance in real-world conditions, and long-term reliability. Our ranking also evaluates each review’s relevancy, authenticity, up-to-dateness and depth so that the comparison is more sound.

We concluded that:

The clear winner of our analysis is Fiesta Weed Killer. We love many things about this product by Neudorff. What sets it apart from the competition is Convenient large-size jug, Fast-acting rainproof formula, Odorless weed control.
The best value product for most shoppers and where user satisfaction is continuously the highest is Finalsan Non-Selective Weed, Grass, Moss & Algae Killer Concentrate, 4 L – Fast-Acting Herbicide by Neudorff based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for Weed Killer and the best cost-to-value ratio is Ortho KILLEX Lawn Weed Killer Concentrate, 1Lat Killex with a 8% discount.
Our list of the best Weed Killer is updated regularly to reflect new releases and changes in product availability, so be sure to check back often for the latest rankings and discounts.

10 Best Weed Killer In Canada

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We scanned 687 products

We concluded that: