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.

You should be able to determine when you can plant bee balm by referring to the USDA zone info for South Houston.

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 one of those plants that can tolerate a tiny bit of cold weather which tells us that you can get them planted just a bit earlier than more sensitive plants.

The earliest that you can plant bee balm in South Houston 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 fully mature. You can get started a little bit earlier by starting your bee balm indoors.

Last Frost Date

The average date of last frost is February 15 in South Houston. In the coldest months of winter you can expect an average low temperature of 20°F.

Keep in mind that USDA zone info for South Houston is an average and the actual date of last frost is different every year. Half of the time in South Houston last frost occurs after February 15 so make sure that you are ready to cover your bee balm if you have a surprise late frost.

USDA Zone Info for South Houston

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in South Houston

You may be interested in your other planting guides for South Houston.