mulch over grass

catb(6 nj)April 21, 2009

I just planted a smoke bush and I want to mulch a large area around the bush- The nursery just mulched around the bush but I want to extend it aprox 4-5 feet. Do I need to take up grass first or will the mulch kill the grass? Dov I need weed barrier, I am not planting anything else in this area

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ilikemud_2007

Yes, kill the grass, cut a nice edge where you want the bed to be and then spray with round up. Use caution and a barrier to protect your tree. You may need to treat it for a few weeks to be sure the grass is dead, then lay down your mulch. I'm not a fan of "Weed Barrier".

    Bookmark   April 21, 2009 at 7:10PM
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inkognito

'Design' guys 'design' it is in the dictionary but not in your question.

    Bookmark   April 21, 2009 at 8:39PM
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catb(6 nj)

really sorry I posted in wrong forum inkognito-you don't have to be so sarcastic-I am sorry that I bothered you.

    Bookmark   April 21, 2009 at 8:46PM
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hoovb zone 9 sunset 23

If you don't want to use Round Up you could lay down cardboard or layers of newspaper (10 pieces of newspaper thick) and put the mulch over that. It will help suffocate the grass and the cardboard/paper will decompose. Mowing the grass really short first wouldn't hurt.

If the grass is Bermuda then killing it will be a lot more difficult. Several applications of Round Up, and even then it's likely to come back.

    Bookmark   April 22, 2009 at 12:49AM
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