One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Imperial you can figure out when it's the best time to plant bee balm 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 can survive in very little cold which tells us that you can plant them just a tiny bit earlier in the year than other plants that might not handle the cold.

The earliest that you can plant bee balm in Imperial 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. If you wait 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 the last frost is on January 31 in Imperial. In the coldest months of winter you can expect an average low temperature of 30°F.

Just be sure to remember that USDA zone info for Imperial is just an average and the actual date of last frost can change quite a bit from year to year. Since half of the time in Imperial you get a frost after January 31 be ready to cover your bee balm if you have one of those late frosts.

USDA Zone Info for Imperial

Here is the info for USDA Zone 10a.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	30°F
Highest Expected Low	35°F

This means that on a really cold year, the coldest it will get is 30°F. On most years you should be prepared to experience lows near 35°F.

Plants to Grow in Imperial

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