Lawn & Soil Care

What Is Cool-Season Grass?

Cool-season grass is turfgrass adapted to relatively cool conditions, with strong growth commonly occurring in spring and fall.

Concept diagram: Spring: active growth; Summer heat: growth slows; Fall: active growth. — Spring: active growth; Summer heat: growth slows; Fall: active growth. Simplified conceptual illustration; not to scale.

How to Understand It

Examples include Kentucky bluegrass, tall fescue, fine fescues, and perennial ryegrass. Growth often slows during summer heat or drought. The seasonal pattern varies with climate and water availability; cool-season does not mean constant growth through freezing winter weather.

Related terms

Overseeding
Root Zone

Learn more

How To Overseed A Lawn

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