The Difference Between Cool Season and Warm Season Grass

Chicago lawns are primarily made up of cool season grasses, which behave differently than warm season varieties.

Cool season grass grows best in spring and fall, slows down in summer, and requires specific timing for treatments.

Understanding this helps explain why lawns change throughout the year.

Applying treatments at the wrong time often leads to poor results because the grass is not actively growing or absorbing nutrients.

Working with the natural cycle of your lawn leads to better outcomes.

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