One to two inches of weed-free loose mulch (including shredded leaves, grass clippings (seed-free), wheat straw, and pine bark mulch) or five to six layers of newspaper should be enough to keep weeds down and the soil moist.
Mulch to maintain moisture and manage weeds. One to two inches of weed-free loose mulch (including shredded leaves, grass clippings (seed-free), wheat straw, and pine bark mulch) or five to six layers of newspaper should be enough to keep weeds down and the soil moist.