A thriving lawn requires a tailored, year-round strategy. The critical first step is identifying your grass type, as cool-season and warm-season grasses have opposite peak growing seasons.
Cool-season grasses like Kentucky bluegrass and tall fescue thrive in 60-75°F weather, growing vigorously in spring and fall. Warm-season grasses like Bermuda and St. Augustine prefer 80-95°F heat, peaking in summer.
Spring (March-May) For cool-season grasses: Rake debris, apply pre-emergent when soil hits 50°F, begin mowing, fertilize in mid-April, and overseed thin patches. For warm-season grasses: Apply pre-emergent in late March/April, begin fertilizing and mowing as growth surges, and dethatch/aerate when soil reaches 65°F.
Summer (June-August) Cool-season lawns need defense. Raise mowing height, water deeply (1-1.5 inches weekly), avoid fertilization, and monitor for grubs. Warm-season grasses require peak care: mow weekly, apply nitrogen fertilizer, water consistently, and aerate in July/August.
Fall (September-November) Cool-season grasses have their second growth surge. Core aerate and overseed in September. Apply fall fertilizer 6-8 weeks before first frost and a winterizer in late October. Mow one final time before winter. Warm-season grasses wind down. Stop fertilizing 6-8 weeks before frost. Overseed with ryegrass in October for winter color and complete final cleanup.
Winter (December-February) For cool-season grasses, keep lawns clear of debris and avoid foot traffic on frozen turf. For warm-season varieties, minimize traffic and water sparingly if needed. Use this time to service all equipment.