NOTE: The color key under the map shows the colors from green to light orange that shows 50 to 75 degrees F. People ask: "Will it grow where I am?" The answer: Yes, our grass grows in all 50 states, but you need to start the grass when your soil temperature is in one of these colors to indicate the soil temperature is between 50 and 75 degrees F. You can plant when it is warmer than 75 degrees F using a process called hydro-seeding.