What Growing Zone Is South Houston?
Our records indicate the United States Department of Agriculture has given South Houston a growing zone designation of 9b. Sometimes also called the planting or hardiness zone, this zone number gives you an idea of what plants can and cannot grow in South Houston's climate based on the average extreme annual temperature.Our data is based on the latest 2023 USDA maps, which used South Houston's weather data from 1991 - 2020 in their analysis.

If you are looking for plants suitable for growing in the South Houston area, head on over to our page on plants that grow well in South Houston, TX.

Raised Garden Planter

Stainless Steel Garden Tool Set

Hoeing Ain't Easy Garden Sign

Raised Garden Bed Kit

Brass Watering Can

The growing zone is a measure of the lowest temperature that a plant can survive based on average lowest year temperatures, helping you to decide what plants would grow best in your particular climate. Since South Houston is in growing zone 9b this means that plants there can survive temperatures as low as 25 to 30 degrees Fahrenheit. Plants for South Houston's climate should be chosen with this in mind, or plants should be moved inside to keep their core temperature in the right range if necessary.

Some zones may have been changed by the USDA as of 2023. To see if the South Houston area has been affected, refer to this map of half zone changes from the 2012 version of the USDA zones to the 2023 version.

The updated map shows that over half of the Southeast has warmed by about half a zone. For gardeners, that means you can now grow plants that tolerate a bit more heat and less frost than before. The tan areas reflect this shift. Meanwhile, the white areas had slight temperature changes, but not enough to move them into a new zone. In the Western U.S., a few spots shifted cooler. That’s not due to a colder climate, but because the new map uses a larger dataset, giving a more accurate picture of local conditions. It's important to keep track of these changes when planning your garden!
Hardiness Zone FAQ
Have questions about hardiness zones and what they mean for your garden? Check out our FAQ below for quick answers to common questions about USDA hardiness zones and how they affect plant selection in South Houston, TX.
The USDA hardiness zone is 9b for South Houston. This is sometimes also referred to as the growing or planting zone. These terms are used interchangeably.
South Houston's Growing Zone Details
USDA Growing Zone: 9b
Zip Codes: 77587
Longitude: -95.2285
Latitude: 29.6611
Lowest Avg Temperatures (F): 25 to 30

Hydroponic Garden Grow Kit

Brass Watering Can

Brass Decorative Faucet Handle

Rustic Iron Garden Trellis

Wooden Chicken Coop
Map of the South Houston Area
All Towns In TX

Metal Arbor Trellis

Rustic Iron Garden Trellis

Cluck Around Sign

Steel Hori Hori Weeding Knife

Metal Seed Storage Box
Plants For Other States
Looking for the best plants in a different area of the United States? Click on a button below to find plants that are ideal for that state's temperatures.

Worm Composting Kit

Self Watering Plant Pots

Brass Watering Can

Rustic Iron Garden Trellis

Stainless Steel Garden Tool Set
To see our latest gardening and homesteading projects, you can find us on Facebook, Instagram, and TikTok.