grass in rock garden - Knowledgebase Question

Shady Side, Ma
Question by bdeckow
May 7, 2009
I have a rock garden with assorted evergreens and plants, and now
i have grass growing between the rocks. I install weed block when garden was constructed. Is there any kind of spray or powder that will get rid of the grass & weeds without harming the other plants


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Answer from NGA
May 7, 2009

0

A pre-emergent herbicide such as Preen will keep weeds from growing in your rock garden but it won't kill the already established weeds. To protect your other plants, the best approach is to hand pull the grasses, roots and all and then apply a pre-emergent herbicide. It is difficult to apply a liquid or powder weed killer without having it affect your other plants. Wish I had a better solution!

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