Connecticut Planting Zones & Schedule

Connecticut sits within USDA Zones 6a to 7b, with cooler temperatures inland and milder conditions along the coast. Northwestern parts of the state fall into Zone 6a, where gardeners can successfully grow cool-weather crops like spinach, peas, and carrots early in the season.

In contrast, the southern coastal areas lie within Zones 7a and 7b, offering a longer frost-free period that supports warm-season vegetables such as tomatoes, peppers, and cucumbers.

 

Connecticut Last & First Frost Dates

  • *Keep in mind that frost can occur before or after these dates. Watch your local weather to determine the best time to plant.

  • The growing season in Connecticut lasts an average of 170 to 190 days, depending on the microclimate. Refer to the planting schedules below to determine the best timing for your zone.

Zone 6 Planting Schedule

Zone 7 Planting Schedule