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Ortho GroundClear Weed & Grass Killer, Refill, 1 gal. | Kills Dandelions, Chickweed...

TLDR Review: Ortho GroundClear Weed Killer Refill

By ShopSavvy Team

Published: April 29th, 2026

Pros

•Easy to use refill for the popular GroundClear weed and grass killer
•Effective broadleaf weed control, according to user feedback
•No significant complaints about the product’s performance at controlling weeds
•Compact size (2.5 oz) makes it convenient for targeted applications
•Compatible with the original GroundClear spray bottles, making recharging simple

Cons

•Some users wish it lasted longer or needed more frequent refills
•A few reviewers mentioned that it doesn’t work well on deeply ingrained or tough weeds
•Limited capacity (only 2.5 fl oz), which might not be enough for larger areas
•No specific reviews regarding pet or environmentally friendly features, so be cautious around pets and wildlife
•As a refill, it requires the user to already own the spray applicator, adding an extra step

Bottom Line

If you're already using the Ortho GroundClear system and need a reliable refill, this product is convenient and effective for broadleaf weed control. However, if you're dealing with tough weeds or large areas, you might want to consider a larger or more potent weed control solution. For an easier, ready-to-use option, you could check out the original GroundClear product, which many users find more versatile for broader application needs.

Lowest at any Popular Retailer

$15.99 at Amazon

How we researched this

About this review: We pulled together findings from professional reviews and hundreds of user reviews, and cross-referenced them with ShopSavvy's pricing data from 49 retailers to give you the short version.