How to Make Your Grass Grow During the Summer

Cut the grass weekly to the recommended height for your type of grass. Not all grass has the same height requirements, but most are best cut to around 2 1/2 to 3 inches. If you are unsure about your grass length, your local garden center or extension agent can give you the information. Letting grass grow too long and tall can shade the bottom of the grass and cause some of it to die out. Maintaining it by cutting once a week and at least every 10 days ensures that the grass doesn't get too high. In the same manner, cutting the grass below its recommended height could cause it to dry out or burn from the sun. Mowing the grass also encourages growth.

Water the lawn deeply once or twice a week instead of every day or every other day. Allowing the ground to almost dry out and then watering to a depth of 3 or 4 inches down, causes the grass to grow deep roots. This makes it stronger and allows it to grow healthy and strong through the summer. Water in the morning so excess surface water can evaporate during the day. Evening watering allows the water to sit on the surface and develop mold.

Read the instructions on a package of nitrogen fertilizer for quantities needed based on the size of your yard. Nitrogen encourages growth. Fill a garden spreader with the required amount.

Push the spreader across the lawn back and forth to cast the fertilizer. Nitrogen fertilizer is needed for warm season grasses, but might create too much growth in cool season grasses. If cool season grasses are not growing well, apply only half the recommended quantity in the summer, to give growth a small boost.

Water the lawn immediately after fertilizing to soak it into the soil and keep it from burning the grass.