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Hyacinth Plant

Q.Killing grass

Zone Southeast Texas | EllenDiann added on April 14, 2012 | Answered

How long do I need to leave the black plastic on my prepared garden rolls to kill grass pieces. Grass is not rooted. I made an area in my backyard to plant a garden. I have thick grass and I did not dig it up and just tilled it. NOW I have all this grass that will grow if I don’t kill it. I don’t use chemicals. I raked and took out a lot of the grass that is broken up with big roots, but there is still plenty of grass. I tilled and tilled until dirt was powdery and then made rolls/hills and again picked out some of the grass with roots. I then wet ground and covered with black plastic.

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Certified GKH Gardening Expert
Answered on April 16, 2012

Usually about a month or so is adequate for killing the grass.

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