Planting Zones: Connecticut Hardiness Map

USDA Connecticut Hardiness Zones: 5b, 6a, 6b, 7a

Connecticut Plant Hardiness Zones Map

For incredible fall foliage, a trip to Connecticut during the autumn months is just the thing.

Connecticut’s continental climate, with cold, snowy winters and hot summers, makes it the perfect environment to produce some of the most amazing colors of fall.

The cold winters boast over 37 inches of snow, which is more than average for the rest of the United States.

As a result, Connecticut’s long, snowy winters make it a winter skiing destination for many visitors. On the other hand, summer times are ripe for thunderstorms, and they frequently occur when the weather warms up.

Springtime is unpredictable in Connecticut, where temperatures may start out frigid but warm up throughout the day.

Connecticut has a four season climate that offers plenty of opportunity for gardening as long as you know your planting zone.

Connecticut Planting Zone – A Quick Overview:

  • The north-western part of Connecticut is the coldest. If you live here, you’re likely living in zone 5b. This hardiness zone makes up about ¼ of the state.
  • As you make your way south towards the coast, the growing zones go up.
  • If you live in the band between Waterbury and Hartford, you’ll find yourself in USDA hardiness zone 6a.
  • Most of the bottom third of the state, south of the Waterbury area, is in Zone 6b.
  • But if you live along the coastal areas, where the weather is the mildest, you’re living in growing zone 7a.

Using the Connecticut Growing Zones Map

Plant hardiness zones are a guide to help farmers and gardeners plan out the best times and plants to put in their gardens and fields. If you know your Connecticut gardening zone, you’ll have a better time planting a successful garden.

This map of the Connecticut hardiness zones is based on the 2012 USDA map data. You can use the hardiness map of Connecticut to find your specific growing zone.

Just find where you live on the map. Then, match the color of your area with the correct color in the map key on the right side of the map. The color will tell you what Connecticut climate zone you live in.

From there, you can find out your first and last frost dates as well as the length of your growing season. This will help you choose the best plants and when to put them in the ground.

If you have trouble figuring out where you live on the map, you can search by your zip code, as well

Now, the zone that shows on the map for your area is just a guide. Changes in terrain and elevation can impact the weather for the area you live in.

If you aren’t sure, then you can talk to local gardening experts to find out the specific details for your area.

Explore Our Complete US Hardiness Zone Map

You can also use the principles of landscaping and terrain to create micro-climates around your garden. For example, choose a south-facing slope for your garden to optimize sunny days.

Or, you could place a row of hedges or large boulders around your garden to help protect it from extreme winds. These tips can help you extend the growing season and protect your plants from severe weather.

Connecticut: Not Just for Apple Trees

Connecticut might be famous for its apple cider, but many more plants will grow and thrive in Connecticut’s growing season.

According to Gerbert and Sons, you can start planting a lot of your vegetables outdoors in the month of May, such as carrots, corn, cucumber, radish, spinach, squash, and beans. Just make sure you are past the last frost date.

Of course, apple trees grow well in the state, but you can also grow trees such as serviceberry, Dogwoods, Crabapples, and even redbuds.

You can even grow flowers such as geraniums and marigolds throughout the state for a beautiful and varied garden.

Trees to Plant in Connecticut

Photo of author

Fern Berg - Founder

Expert Gardener & Horticulturist in Training

Fern has planted and currently cares for over 100 different native and exotic fruit, nut, and ornamental trees. She also cultivates an extensive vegetable garden, several flower gardens and cares for an ever-growing happy family of indoor plants. Fern has a special interest in biodynamic farming, food production and closed loop agriculture. Fern founded Tree Vitalize to help guide others with an interest in tree planting, identification and care.