The USDA Zone info is a great tool for gardeners to help us estimate 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.

In South Houston you can determine when it's a good idea to plant snow-in summer by checking out the USDA zone info.

Planting Calendar for Snow-in Summer

Frost tolerance for snow-in summer:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

You can plant snow-in summer a little earlier in the year because they are moderately cold tolerant.

The earliest that you can plant snow-in summer in South Houston is January. However, you really should wait until February if you don't want to take any chances.

The last month that you can plant snow-in summer and expect a good harvest is probably October. If you wait any later than that and your snow-in summer may not have a chance to really do well. You can get started a little bit earlier by starting your snow-in summer 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.

Since the USDA zone info for South Houston is not always accurate the actual date of last frost changes from year to year. Half of the time in South Houston it frosts late in the year after February 15 so always be ready to protect your snow-in summer in the event of a 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.