Early spring: As soon as the ground is firm, clear away surface debris. Roll when dry to consolidate ground lifted by frost. Take thoroughly to lift up grass and weeds, and mow with blades set high.

Midspring: Apply a fertilizer, followed a week or two later by a selective or preemergent lawn herbicide. Mow once or twice a week, removing no more than one-third of leaf blades each time.

Late spring: Increase the frequency of mowing as necessary. Cut it close-with the mower blades set low (see table). Now is the best time to eradicate weeds.

Summer: Mow at highest level; cut less frequently, perhaps twice a month. Water well – 1 in (2.5 cm) per week – during prolonged dry periods. Destroy isolated weeds with selective herbicide.

Early fall: Resume more frequent mowing and lower the blade setting by ½ in (1.2 cm) below the highest level. Rake, aerate, and fertilize with a slow-release or organic fertilizer with a 3-2-1 ratio of nutrients.

Midfall: Regular mowing comes to an end. Use low-blade setting for last cut-as much as 1 in (2.5 cm) shorter than highest level.

Late fall: If the weather is not frosty or wet, and the surface is firm, mow once with the blades set high. Rake off any leaves.

Early winter: Clear away the last of the fallen leaves, but keep off the lawn if it is very wet or frozen.