Spring

• Spread granular, slow-acting fertilizer, only do this after a soil test, so you are adding only what the soil needs.
• Aerate the lawn to treat compacted soil
• Mulch with organic matter, if necessary
• Sharpen your mower blades at the start of the season
• Have your Irrigation system turned on, heads cut out and adjusted, battery replaced, check for leaks, etc.

Summer

• Remove dead or overgrown shrubs
• Learn the signs of bug infestation, and head them off before they get settled in
• Water your lawn 2 or 3 times a week if rain is scarce.
• Treat weeds and seed bare spots as soon as you see them
• Sharpen your mower blade again halfway through the season.

Autumn

• Aerate and over seed your lawn
• Mulch with organic material, or mow a layer of fallen leaves into the lawn
• Fertilize your lawn around Thanksgiving to promote strong root growth during winter
• Don't "scalp" your lawn in the fall - mow grass and leave at least 2 inches high.

Winter

• Even though grasses grow slowly during the winter months, remember to water your lawn if it doesn't rain for three to four weeks.
• Late winter is the time to apply pre-emergent herbicides to your lawn. Consult with your
  local garden center for direction on this process.