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Using Grass Clippings That Have Weed Killer On Them

Category Lawn
When your grass clippings contain chemicals to prevent weeds, you want to know if they are safe to use as mulch or part of your compost pile. This guide is about using grass clippings that have weed killer on them.
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June 4, 2008

I like to use newspapers and grass clipping in my vegetable garden for mulch. I would like to know if I can use grass clippings from a lawn that has been treated with a weed and feed or crabgrass preventer. If I can, how long after being treated can I use them?

Hardiness Zone: 5a

Bonnie from Avoca, NE

Answers

March 31, 20110 found this helpful
Best Answer

I have been using grass clippings as mulch in my veggie garden for many years. While we have changed to organic "weed & feed" products over the years, I have always done this. Generally, we wait until the lawn has been cut twice before adding to our garden, to make sure I am not getting any product into my veggie gardens. I have never found the clippings to impede the gardens growth in any way & it does a wonderful job of keeping moisture in & weeds out. (I never have to weed my veggie gardens)Then it just decomposes into the soil & enriches it even more. I have several raised beds that are filled with compost that we make from our donkey/goat/chicken manure & kitchen/garden waste etc.

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God Bless

Trish in CT

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March 31, 20110 found this helpful
Best Answer

No one should use those chemicals in a place where people and pets walk. Do not put them on your garden. Even grass that has been cut several times still has the chemicals in it because they are in the soil the grass grew in. Just like it will be in the soil of your garden.

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June 8, 20080 found this helpful

I guess I would just do the experiment. Plant some nasturtium seed in the area mulched by that grass and see how it grows. Repeat until you get normal plants.

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By Maryellen (Guest Post)
June 23, 20080 found this helpful

You really should NOT use treated clippings in your vegetable garden.

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