Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Haverhill you can estimate when to plant balsam by looking at the USDA zone info.

Planting Calendar for Balsam

Frost tolerance for balsam:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

It's not a good idea to plant balsam until after all chance of frost has passed because they do not do well in cold weather.

The earliest that you can plant balsam in Haverhill is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant balsam and expect a good harvest is probably August. You probably don't want to wait any later than that or else your balsam may not have a chance to fully mature. If you are starting your balsam indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

On average all chance of frost has passed is on April 15 in Haverhill. It might get as low as -10°F during the coldest months of winter.

Since the USDA zone info for Haverhill is an average the actual date of last frost will vary from year to year. Half of the time in Haverhill there is a last frost after April 15 so make sure that you are ready to cover your balsam in the event of one of those late frosts.

USDA Zone Info for Haverhill

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 Haverhill

You may be interested in your other planting guides for Haverhill.