Crab grass - Knowledgebase Question

Riverside, Ca
Question by dempseyconst
March 10, 2009
How can I kill crab grass in my flower beds. I've tried everything. Even dug it out.

Answer from NGA
March 10, 2009


Crabgrass is really difficult to control in flower beds (as you've discovered). The first plan of attack is to pull the weeds, including the roots; the second is to lay a thick mulch over the bed to prevent sunlight from penetrating (weed barrier or several thicknesses of newspapers plus decorative bark or rock); the third option is to use a herbicide and spot treat the pesky weeds. You can use something like Round-Up near your existing plants if you're careful not to allow over-spray to drift onto them. Best wishes with your project!

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