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Grass Variety |
Mowing Height Range |
Optimal Mowing |
Normal Mowing |
Kentucky Bluegrass |
1.5 — 3.0 |
2.0 |
5 — 7 |
Tall Fescue |
2.0 — 4.0 |
2.5 |
7 — 14 |
In general, turf grasses need about 3/4" — 1" of water per week to maintain green color and active growth. However, during certain times during the summer when high temperatures are the norm, you should allow lawns to naturally slow down in growth during those extreme conditions. You may let the lawn go almost completely dormant in hot weather. Many factors such as the soil and weather all have a role in the lawn's water needs.