Advertising Disclosure

5 Best Fiesta Weed Killer Canadas of 2026

Last Updated - 2026/06/14

1
Best Choice

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Neudorff

Finalsan Herbicidal Soap - 10 L

Neudorff

CA$169.99

More Details
Main highlights
CA$169.99
2

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Neudorff

Fiesta Broadleaf Weed Killer for Lawns, Controls Dandelion, White Clover, & More & See Result Within Hours. People & Pets Can Enter Treated Area When Spray Dries, Made with Iron, Rainfast in 3 Hours.

Neudorff

CA$134.99

More Details
Main highlights
- TARGETS 15+ TOUGH WEEDS: Effectively controls or suppresses a wide variety of lawn invaders, including dandelions, white clover, bull thistle, Canada thistle, and common chickweed. It also provides a specialized solution for creeping buttercup, slender speedwell, moss, and algae
- PEOPLE & PET FRIENDLY: Designed for domestic use, this solution has no unpleasant odour. Once the spray has completely dried, children and pets can safely re-enter the treated area, making it a worry-free choice for busy family homes.
- KILLS THE WEEDS, NOT THE LAWN: This selective herbicide is specifically formulated to target broadleaf weeds without harming your turf. It is safe for use on lawns consisting of Kentucky bluegrass, perennial ryegrass, and fescues, including tall, chewings, and creeping varieties.
- FAST-ACTING WEED CONTROL: See visible results within just a few hours as susceptible weeds, moss, and algae turn brown or black. This powerful iron-based formula is rainfast in 3 hours, ensuring your lawn treatment remains effective even if the weather is unpredictable
- EASY-TO-MIX CONCENTRATE: This 4-litre bottle provides high-value coverage, treating between 250 and 1,000 m² (2,700 - 10,800 ft²) depending on the application rate. Simply mix 42 mL of concentrate with 1 litre of water and apply using any standard hand-held or backpack sprayer
CA$134.99
3

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Neudorff

Fiesta Broadleaf Weed Killer for Lawns, Kills Within Hours & Leaves No Harmful Residue in The Soil, Areas Can Be Re-Sown Five Days After Treatment. Non-staining Herbicidal Soap (Granule (6 KG))

Neudorff

CA$93.99

More Details
Main highlights
- TARGETS 15+ TOUGH WEEDS: Effectively controls or suppresses a wide variety of lawn invaders, including dandelions, white clover, bull thistle, Canada thistle, and common chickweed. It also provides a specialized solution for creeping buttercup, slender speedwell, moss, and algae
- PEOPLE & PET FRIENDLY: Designed for domestic use, this solution has no unpleasant odour. Once the spray has completely dried, children and pets can safely re-enter the treated area, making it a worry-free choice for busy family homes.
- KILLS THE WEEDS, NOT THE LAWN: This selective herbicide is specifically formulated to target broadleaf weeds without harming your turf. It is safe for use on lawns consisting of Kentucky bluegrass, perennial ryegrass, and fescues, including tall, chewings, and creeping varieties.
- FAST-ACTING WEED CONTROL: See visible results within just a few hours as susceptible weeds, moss, and algae turn brown or black. This powerful iron-based formula is rainfast in 3 hours, ensuring your lawn treatment remains effective even if the weather is unpredictable
- EASY-TO-MIX CONCENTRATE: This 4-litre bottle provides high-value coverage, treating between 250 and 1,000 m² (2,700 - 10,800 ft²) depending on the application rate. Simply mix 42 mL of concentrate with 1 litre of water and apply using any standard hand-held or backpack sprayer
CA$93.99
4

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Neudorff

Neudorff Fiesta Lawn Weed Killer Double Strength RTU, See Results in Hours & Can Reseed Lawn 1 Day After Treatment, People & Pets Can Enter Treated Area When Spray Dries, Made with Iron (946 ML)

Neudorff

CA$24.99

More Details
Main highlights
- Twice the Concentration of Original Formula | Suppresses the Following Lawn Weeds: Broad-leaved Plantain, Bedstraw, Cinquefoil, Curly Dock, Heal-all, Prostrate Knotweed & For Use on Lawn Turf Consisting of One or More of Kentucky Bluegrass, Canada Bluegrass, Perennial Ryegrass, &Fescue (Tall Fescue, Chewings Fescue, and/or Creeping Fescue)
- See Results within Hours | Controls the Following Lawn Weeds: Dandelion, English Daisy, False Dandelion, White Clover, Black Medic, Bull Thistle, Canada Thistle (<15 cm tall), Common Chickweed, Creeping Buttercup, Slender Speedwell, Narrow-leaved Plantain, Dove's Foot Geranium, Wild Geranium, Lawn Burweed, Hawkweed, Moss & Algae.
- Rainfast in 3 Hours & No Unpleasant Odor: For Targeted Treatment of Broadleaf Weeds, Simply Target a Weed & Squeeze Trigger Wetting to The Point of Runoff.
- Made with Iron | Reseed Your Lawn 1 Day after Spraying & People & Pets Can Enter Treated Area when Spray Dries
CA$24.99
5
Best Value

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Killex

Ortho KILLEX Lawn Weed Killer Concentrate, 1L

Killex

CA$35.04

CA$37.99
(8% Off)

More Details
Main highlights
- Won’t hurt your lawn!
- Ortho Killex Concentrated formula provides maximum coverage for more widespread weed infestations
- Mix 6 mL per litre of water to treat 5 square metres (50 square feet).
- Herbicide pour la pelouse, Wipe Out Weeds effectively!
- Controls over 50 different lawn weeds including dandelions, plantains, clover, ground ivy (creeping Charlie) and ragweed
CA$35.04
CA$37.99 (8% Off)

5 Best Fiesta Weed Killer Canadas of 2026

Finalsan Herbicidal Soap - 10 L

Fiesta Broadleaf Weed Killer for Lawns, Controls Dandelion, White Clover, & More & See Result Within Hours. People & Pets Can Enter Treated Area When Spray Dries, Made with Iron, Rainfast in 3 Hours.

Fiesta Broadleaf Weed Killer for Lawns, Kills Within Hours & Leaves No Harmful Residue in The Soil, Areas Can Be Re-Sown Five Days After Treatment. Non-staining Herbicidal Soap (Granule (6 KG))

Neudorff Fiesta Lawn Weed Killer Double Strength RTU, See Results in Hours & Can Reseed Lawn 1 Day After Treatment, People & Pets Can Enter Treated Area When Spray Dries, Made with Iron (946 ML)

Ortho KILLEX Lawn Weed Killer Concentrate, 1L

You may also like...

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

Neudorff Finalsan Concentrate Weed Killer Fast-Acting Herbicide Kills within Hours & Leaves No Harmful Residue in The Soil, Areas Can Be Re-sown Five Days after Treatment. Non-staining Herbicidal Soap

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

Super Concentrated Weed Control – Powerful Non-Selective Herbicide for Driveways, Patios, Walkways, and Garden Edging, 1L Makes Multiple litres of Spray Solution

BYEBYE Weed RTU Brush, Grass & Weed Killer with 1 Touch Power Sprayer

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

Ready-to-Use Grass and Weed Control Spray – 1L Non-Selective Herbicide with Fast-Acting Foam for Patios, Walkways, Driveways and Edges

Roundup Advanced Ready-to-use 1L

BARAYSTUS Weed Remover Tool, 3-in-1 Garden Crack Weeder with Metal Brush, Curved Triangular Scraper, Long Adjustable Ergonomic Handle for Easy Patio, Sidewalk & Driveway Moss & Weed Removal

Sign up and get exclusive special deals