Hi, Sheila, We do not recommend using landscape cloth for almost anything. We assume that you would put rocks on the landscape cloth. If so, that may appear to work for a while, but when weeds break through or become embedded among the rocks and cloth, you would have a real job trying to eliminate them. Note, too that phlox spreads by seed, so some seeds will land near the mother plant and some could be blown a distance from it, which means you could have phlox where you least want or expect it.
Instead we recommend mulch. Of course, phlox and other plants can/will take root in mulch; the solution is really to weed them out.
Hi, Sheila, We do not recommend using landscape cloth for almost anything. We assume that you would put rocks on the landscape cloth. If so, that may appear to work for a while, but when weeds break through or become embedded among the rocks and cloth, you would have a real job trying to eliminate them. Note, too that phlox spreads by seed, so some seeds will land near the mother plant and some could be blown a distance from it, which means you could have phlox where you least want or expect it.
Instead we recommend mulch. Of course, phlox and other plants can/will take root in mulch; the solution is really to weed them out.