Mow lawns often
• Mow high this time of year. The longer grass will shade the soil, conserving moisture and discouraging weeds. Mow to 3 inches long for cool-season grasses such as Kentucky bluegrass and 2 inches for most warm-season grasses, such as Bermudagrass and zoysia. But also remember never to remove more than one-third of the grass blade at a time or you'll stress your grass.