The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In New Haven you can figure out when it's possible to plant garlic by referring to the USDA zone info.

Planting Calendar for Garlic

Frost tolerance for garlic:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

You can plant garlic earlier in the year because they are very cold tolerant.

The earliest that you can plant garlic in New Haven is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant garlic and expect a good harvest is probably September. If you wait any later than that and your garlic may not have a chance to really do well. You can get started a little bit earlier by starting your garlic indoors.

Last Frost Date

On average all chance of frost has passed is on April 15 in New Haven. It might get as low as 0°F during the coldest months of winter.

Since the USDA zone info for New Haven is not always accurate the actual date of last frost changes from year to year. Since half of the time in New Haven you get a frost after April 15 be ready to cover your garlic in the event of one of those late frosts.

USDA Zone Info for New Haven

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	0°F
Highest Expected Low	5°F

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in New Haven

You may be interested in your other planting guides for New Haven.