Before planting it is a good idea to find your USDA Zone info to figure out 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 figuring out when to plant bee balm is to look at the USDA zone info for Vacaville.

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 are barely cold tolerant which means that you can plant them slightly earlier than more sensitive plants.

The earliest that you can plant bee balm in Vacaville 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 bee balm and expect a good harvest is probably September. Any later than that and your bee balm may not have a chance to grow to maturity. 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 February 15 in Vacaville. In the coldest months of winter you can expect an average low temperature of 25°F.

Since the USDA zone info for Vacaville is an average the actual date of last frost is different every year. Half of the time in Vacaville you get surprised by a frost after February 15 so be sure to be ready to cover your bee balm if you have one of those late frosts.

USDA Zone Info for Vacaville

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Vacaville

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