What Is the Proper Growing Season for Grass?

Updated February 21, 2017

Grass seed needs the correct soil and air temperature, as well as moisture content, to sprout. If planted at the right time, grass seed will have sufficient time to grow and spread its roots, creating a thick and vibrant lawn.

Time Frame

Plant grass seed at the right time for the specific type. Cool season grasses, which are typically grown in the northern states, should be planted in the early spring or early fall. Warm season grasses, which are grown in warmer states, should be sowed in late spring or early summer.


Grass slows down its growth during temperature extremes. Planting grass seed too early or too late can result in gaps in your lawn. Not only do grasses need a certain temperature range to sprout, they also need a specific amount of time until they are strong enough to survive.


It's possible to grow grass outside the typical growing season, but the risks are higher. The seeds may rot from the cold and moist soil, or they can be killed by freeze or frost. Hot summers can also kill off seed before it has the chance to germinate properly.

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About the Author

Based in New York State, Kelly Shetsky started writing in 1999. She is a broadcast journalist-turned Director of Marketing and Public Relations and has experience researching, writing, producing and reporting. She writes for several websites, specializing in gardening, medical, health and fitness, entertainment and travel. Shetsky has a Bachelor of Arts in communications from Marist College.