Answer: That's a pretty tall order because anything you use to kill the weeds will affect the lawn and the roses. It might be best to dig the rose bushes and completely renovate the area. Use a vegetation killer to get rid of the weeds, till up the lawn and reseed, then replant your rose bushes. Putting your lawn on a regular watering, feeding and mowing schedule will help it grow thick enough to crowd out most weeds.
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