Mid-Atlantic Lawn Mowing Guide
The Mid-Atlantic is the transition zone at its hardest: too hot in summer for cool-season grass, too cold in winter for warm-season grass to keep its color. Tall fescue wins here because it’s the most heat- and drought-tolerant cool-season grass, but only if you mow it high through summer: in the hottest, driest weather, the University of Maryland Extension puts the mower on its highest setting. Cutting fescue short in a Mid-Atlantic July is the fastest way to a brown August lawn.
What grass do you have?
- Tall fescue: the regional workhorse; deep roots, heat tolerance, stays green with a high cut.
- Kentucky Bluegrass: often blended with fescue for self-repair in sunny areas.
Mowing heights for Mid-Atlantic grasses
| Grass | Mowing height | Notes |
|---|---|---|
| Tall fescue | 3–4 in (Maryland) | 2 in or above in Pennsylvania (Penn State); 3–3.5 in in New York (Cornell). In the hottest, driest part of summer, use the mower’s highest setting (University of Maryland) |
| Kentucky Bluegrass | 2.5–3.5 in (Maryland) | 2 in or above in Pennsylvania (Penn State); 3–3.5 in in New York (Cornell). Raise toward 3.5 in in summer |
Humidity brings brown patch in mid-summer; the high cut plus morning watering keeps it in check.
Mid-Atlantic mowing calendar
| Month | Mowing & lawn care |
|---|---|
| Jan | Dormant. No mowing. |
| Feb | Dormant. Service the mower; plan pre-emergent. |
| Mar | Green-up begins; apply crabgrass pre-emergent before soil hits 55°F. Virginia (VCE): March–April. Pennsylvania (Penn State): March 15–April 15 in the southeast, April 1–May 1 in most of the state, April 15–May 15 in the northern tier and high-altitude counties. |
| Apr | Active spring growth; first regular mows. |
| May | Peak growth: mow weekly. |
| Jun | Heat arrives; start raising fescue toward the top of its range. |
| Jul | Peak heat + humidity: mow high, less often; watch for brown patch. |
| Aug | Hold the high cut; water deeply in the morning. |
| Sep | Best month: overseed thin fescue, fertilize, mow weekly. |
| Oct | Strong fall growth; keep mowing. |
| Nov | Last mow late month (~3 in). |
| Dec | Dormant. Rest. |
Mowers & equipment
See our mowing height guide, best lawn mowers, and best self-propelled lawn mowers.
Get the full Mid-Atlantic plan
Lush Lawns Mid-Atlantic: region-specific mowing heights, seasonal timing, and lawn care for the Mid-Atlantic (tall fescue and Kentucky Bluegrass).
Printable Mid-Atlantic lawn care calendar and worksheet
Two PDFs to print at home, built from the extension service publications for the Mid-Atlantic. Each page lists the publications it draws on.
Mid-Atlantic Lawn Care Bundle: $5.99
The calendar and the worksheet together, $3.49 less than buying both.
Buy the bundle for $5.99Mid-Atlantic Lawn Care Calendar: $4.49
Find your grass on the first page, then turn to its page for when to mow, water and fertilize, with mowing heights for each grass.
Buy for $4.49Mid-Atlantic Lawn Planning Worksheet: $4.99
Measure your lawn, record a soil test, work out how much fertilizer to spread, test what your sprinklers put down, and log the season month by month.
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