The Q&A Archives: Weeds in Junipers

Question: We have creeping junipers along our steps, and have grass growing between the plants. I spend time pulling the grass out between the plants, which is very time consuming. Is there any way I can spray the plants and at the same time kill the grass, without damaging the junipers ?

Answer: Weeding between junipers is a prickly job at best! One method of control would be to carefully use glyphosate on the grass according to the label instructions. However, this is a non-selective herbicide and should not be allowed to contact the junipers, so sounds like it may not be an option here. It also would not prevent new grass from growing.

Another approach would be to place newspaper or cardboard topped by layer of mulch around and in under the junipers and over top of the grass. This will exclude light and eventually smother the grass. It would also prevent new plants from any seeds already in place. If you continue to top up the mulch periodically this should keep new weed seeds that have blown in from elsewhere from germinating, also. Eventually, the junipers should be thick enough to smother any weeds all on their own and the cardboard or newspaper will rot away.

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