Summer care for a healthy lawn
The lawn needs mowing this summer, but probably not as often as it did in spring. You will want to continue mowing using the one-third rule (cutting off no more than 1/3 of the leaf blade), but the grass will be growing more slowly. You may also want to cut the lawn a little higher in the summer. This helps provide more shade to the crown of the plant during the heat of the day. It also helps encourage deeper rooting which means they have more access to moisture. A thicker lawn is also less prone to insect, disease and weed pressures. The grass plants crowd everything else out and rejuvenate much quicker if they are attacked.
The best way to handle the occasional
dandelion or other weed that crops up
in the yard is to dig it out by the roots
or spot treat with a broadleaf weed killer.
Besides mowing practices, you can keep the lawn healthy with proper fertilization. If you missed the spring feeding window, use fertilizers designed for summer or anytime use such as GreenView with GreenSmart Lawn Food or Lebanon ProScape 9-2-5 Fertilizer with Iron. Either would be an excellent choice. These contain nutrients that release slowly and will not produce a flush of growth that would require moisture that might not be present.
Here are some additional tips that will provide a healthy lawn and its attendant benefits.