The application of a spring type of lawn fertilizer should perk up your lawn and improve its overall color and appearance.
If there is moss growing in the lawn, use a spring lawn fertilizer that has the moss-killer included, so you can do both jobs in one easy application.
Spring is also a good time to thatch and over-seed the lawn. Thatch buildup can smother your lawn and provide an environment for diseases. Remove thatch with a brisk raking or with a de-thatching machine. Overseeding will help fill in the lawn and deter the re-growth of moss and weeds. Use about one pound of quality grass seed for every 300 square feet of lawn area. Apply light compost or soil over the seed to keep it moist and in place. Aerating the lawn will allow water to penetrate deeper into the lawn soil and reduce the need to water during the dryer months ahead. Use a garden fork and punch holes over the surface of your lawn.
As mowing becomes necessary, be certain that the blade is sharp to prevent tearing the grass tips. Set the blade on your lawnmower to cut the grass at 2 1/2 inches to avoid scalping.