How to mow correctly in spring?
Mowing height and frequency directly affect root depth, weed pressure, and disease resistance. The first mow of the season sets the tone for the entire year.
- Never mow wet grass4
Wait for the grass and soil surface to dry before mowing. If morning dew is heavy, mow in the late morning or early afternoon instead.
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- Use a reel mower for cleaner cuts on low-cut warm-season lawns3
If you maintain bermuda or zoysia at 1 to 2 inches, consider switching from a rotary mower to a reel mower. Reel mowers cut with a scissor action that produces a cleaner, healthier cut at low heights.
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π οΈ Reel mower (manual or powered)
- Alternate mowing direction each session4
Change your mowing pattern every time you mow. If you went north-south last time, go east-west next. Occasionally mow diagonally for variety.
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- Mow every 5 to 7 days during peak spring growth4
During the spring growth surge (typically April through May for cool-season grasses), plan to mow every 5 to 7 days. In especially wet, warm springs you may need to mow twice per week to stay within the one-third rule.
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- Mow warm-season grasses at 1 to 2 inches4
Maintain bermudagrass at 1 to 1.5 inches and zoysiagrass at 1.5 to 2.5 inches during the growing season. St. Augustinegrass prefers 2.5 to 3 inches.
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- Mow cool-season grasses at 3 to 4 inches5
Set your mower deck to maintain Kentucky bluegrass, tall fescue, and perennial ryegrass at 3 to 4 inches throughout spring. Start closer to 3 inches in early spring, then raise toward 4 inches as summer heat approaches.
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- Bag clippings on the first mow then mulch thereafter4
Bag the clippings from your first spring mow to remove dead winter debris, then switch to mulching for the rest of the season.
π best practice2/8/2026, 5:25:52 AM
π οΈ Mower with mulching blade or bagger attachment
- Follow the one-third rule for every mow5
Never remove more than one-third of the grass blade height in a single mowing. If your target height is 3 inches, mow when the grass reaches 4 to 4.5 inches.
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- Lower mowing height one notch for the first cut only4
For the very first mow of the season, drop your mower height by one notch (about half an inch lower than your normal setting). Mow the entire lawn, then immediately raise the deck back to normal height for all subsequent mows.
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- Wait until grass reaches 3 inches before the first mow5
Do not start mowing based on the calendar. Wait until the grass has actively grown to about 3 inches tall, which typically happens when air temperatures consistently exceed 60Β°F for cool-season grass or 80Β°F for warm-season varieties.
π best practice2/8/2026, 5:25:35 AM
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