Agronomic Technical Standard
Turfgrass Mowing Height & Frequency Reference Chart
Optimal bench heights of cut (HOC), seasonal heat elevation guidelines, mower mechanical specifications, and cutting frequency intervals across 10 grass cultivars.
Check your 1/3 rule max pre-cut height:
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Prevent foliar scalping and root shock before starting your lawn mower.
| Turfgrass Cultivar | Optimal Bench Height | Summer Heat Height | Max 1/3 Pre-Cut Limit | Frequency (Spring/Fall) | Mower Technology |
|---|---|---|---|---|---|
| Turf-Type Tall Fescue | 3.0 – 3.5 inches | 4.0 inches | 5.25 inches | Every 5 – 7 days | Rotary (Mulching blade) |
| Kentucky Bluegrass | 2.5 – 3.0 inches | 3.5 inches | 4.50 inches | Every 4 – 6 days | Rotary or Reel |
| Perennial Ryegrass | 1.5 – 2.5 inches | 2.5 inches | 3.75 inches | Every 4 – 5 days | Rotary or Precision Reel |
| Fine Fescues (Shade) | 2.5 – 3.5 inches | 3.5 inches | 5.25 inches | Every 7 – 10 days | Sharp rotary blade |
| Bermudagrass (Common) | 1.0 – 1.5 inches | 2.0 inches | 2.25 inches | Every 3 – 5 days | Rotary or Reel |
| Bermudagrass (Hybrid) | 0.5 – 1.0 inch | 1.25 inches | 1.50 inches | Every 2 – 3 days | Precision Reel (10-14 blade) |
| Zoysiagrass (Japonica) | 1.5 – 2.0 inches | 2.5 inches | 3.00 inches | Every 5 – 7 days | Rotary or Reel |
| Zoysiagrass (Matrella) | 0.75 – 1.25 inches | 1.5 inches | 1.85 inches | Every 4 – 5 days | Precision Reel |
| St. Augustinegrass | 3.0 – 4.0 inches | 4.0 inches | 6.00 inches | Every 5 – 7 days | Rotary (High deck clearance) |
| Centipedegrass | 1.5 – 2.0 inches | 2.0 inches | 3.00 inches | Every 7 – 10 days | Rotary |