The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The first opportunity to plant balsam in South Houston can be estimated by reviewing the USDA zone info.

Planting Calendar for Balsam

Frost tolerance for balsam:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

Balsam are not cold tolerant which tells us that it is important to wait until it warms up after all chance of frost has passed before you can plant them.

The earliest that you can plant balsam in South Houston 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 balsam and expect a good harvest is probably September. Any later than that and your balsam may not have a chance to grow to maturity. You can get started a little bit earlier by starting your balsam indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on February 15 in South Houston. In the coldest months of winter you can expect an average low temperature of 20°F.

It's important to remember that USDA zone info for South Houston is just an average and the actual date of last frost changes from year to year. Half of the time in South Houston you get surprised by a frost after February 15 so make sure that you are prepared to protect your balsam if you have one of those late frosts.

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.