What Can Grow in New Haven, CT

New Haven's coastal location gives it slightly warmer winters and a longer season than inland Connecticut.

New Haven, CT is in USDA Hardiness Zone 6b. The growing season lasts about 168 days, with last frost around April 8 and first fall frost around October 20. Top crops include tomatoes, peppers, beans.

6bUSDA Zone
168 daysFrost-Free
April 8Last Frost
October 20First Frost
🌱 What Grows in New Haven
tomatoespeppersbeanscornsquashlettuce
💡 Planting Tips

Coastal benefits. Plant cool crops by April 1. Warm crops after April 20.

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📍 Full Zone 6b Guide 🌎 Connecticut Planting Guide

Frequently Asked Questions

New Haven, CT is in USDA Plant Hardiness Zone 6b. New Haven's coastal location gives it slightly warmer winters and a longer season than inland Connecticut.

The average last spring frost in New Haven is around April 8. The first fall frost typically arrives around October 20, giving a frost-free growing season of approximately 168 days.

New Haven's Zone 6b climate supports growing tomatoes, peppers, beans, corn, squash, lettuce. Coastal benefits. Plant cool crops by April 1. Warm crops after April 20.

In New Haven, start with cool-season crops like lettuce, spinach, and broccoli a few weeks before the last frost date of April 8. Warm-season crops like tomatoes and peppers should go in after all frost risk has passed.