Grass typically turns brown in winter due to dormancy, a natural survival mechanism. During this period, grass:
- Stops growing and conserves energy
- Moves nutrients from leaves to roots
- Reduces water uptake to prevent freeze damage
Different types of grass respond differently to cold: warm-season grasses turn brown at the first frost, while cool-season grasses may stay green longer. This browning isn’t death – it’s a temporary state that helps the grass survive unfavorable conditions. When temperatures warm and daylight increases in spring, the grass will naturally green up again.