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Using Grass Clippings Treated with Weed Killer as Mulch

Clippings from herbicide-treated lawns can damage sensitive plants like tomatoes and young flowers. Established shrubs and trees tolerate them better. If you compost the clippings, the chemicals break down—usually within six months. Until then, keep treated clippings away from vulnerable plants.

About Gardening: Natural Weed Control: Vinegar, Soap, and Salt – What Works and What Doesn't; Why Landscape Fabric Fails Under Mulch & Better Weed Control; Accidentally Sprayed Weed Killer on Knock Out Roses—Can They Be Saved?; Grassy Weed in St. Augustine: Live With It or Start Over; Choosing the Right Grass Weed Killer: A Practical Guide; Natural and Chemical Options for Weed and Grass Control; Herbicide Residue After Ivy Removal: Test with Radishes Before Planting Vegetables; Grass Clippings as Vegetable Garden Mulch: Safe if Herbicide-Free; Using Grass Clippings as Mulch in the Vegetable Garden: Pros and Cons; Compost Pile Temperature and Weed Seed Survival

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