One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You can determine when it's the best time to plant bee balm in Woburn by checking out the USDA zone info.

Planting Calendar for Bee Balm

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

Bee Balm do ok in moderate cold which means that you can get them planted just a bit earlier than other frost tender plants.

The earliest that you can plant bee balm in Woburn 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 bee balm and expect a good harvest is probably August. Any later than that and your bee balm may not have a chance to really do well. You can get started a few weeks earlier by starting your bee balm indoors.

Last Frost Date

On average all chance of frost has passed is on April 15 in Woburn. You can expect an average low temperature of -10°F in the coldest months of winter.

Keep in mind that USDA zone info for Woburn is just an average and the actual date of last frost changes from year to year. Half of the time in Woburn last frost occurs after April 15 so be sure to be ready to protect your bee balm in the event of a late frost.

USDA Zone Info for Woburn

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 Woburn

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