The most common watering mistake we see in this area is frequent, shallow watering — a little bit every day. Centipede grass (and warm-season grass in general) is much better served by infrequent, deep watering that trains roots to grow down instead of staying shallow near the surface.
The general rule
Aim for about 1 inch of water per week during the growing season, delivered in one or two deep sessions rather than daily light sprinkles. In our sandy coastal soils, water drains fast, so deep watering matters even more here than it would in heavier clay soil further inland.
Signs your lawn actually needs water
Footprints or mower tracks that stay visible instead of springing back, a dull blue-gray tint instead of green, and leaf blades folding or rolling are all signs centipede is asking for water — wait for these signs rather than watering on a fixed daily schedule.
Time of day matters
Early morning (roughly 4-10 a.m.) is the best window. Watering in the evening leaves grass wet overnight, which is exactly the condition fungal disease needs to take hold in our humid climate.
Winter is different
Once centipede goes dormant in winter, it needs very little supplemental water. Overwatering a dormant lawn does nothing but waste water and can invite winter disease issues.
