Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

A common way of getting a good idea when it's a good idea to plant lemon grass is to check out the USDA zone info for New Haven.

Planting Calendar for Lemon grass

Frost tolerance for lemon grass:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Since lemon grass do ok in moderate cold you can plant them a bit earlier in the year than plants that are more sensitive to the cold.

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

The last month that you can plant lemon grass and expect a good harvest is probably August. If you wait any later than that and your lemon grass may not have a chance to fully mature. Starting your lemon grass indoors is a great way to get them started a few weeks earlier.

Last Frost Date

In New Haven the average date of last frost happens on April 15. You should expect an average low temperature of -10°F in the coldest months of winter.

Since the USDA zone info for New Haven is just an average the actual date of last frost will vary from year to year. Half of the time in New Haven you get a frost after April 15 so just be sure to be ready to cover your lemon grass if you have a surprise late frost.

USDA Zone Info for New Haven

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°F

This means that on a really cold year, the coldest it will get is -10°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.