What Growing Zone Is Summerlin South?

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

map of growing zone 9aLatest NV growing zone map

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

map of growing zone 9aLatest NV growing zone map

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 Summerlin South is in growing zone 9a this means that plants there can survive temperatures as low as 20 to 25 degrees Fahrenheit. Plants for Summerlin South'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.

USDA growing zone map of the United States

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

map of usda hardiness zone changes from 2012 to 2023Half zone changes from 2012 to 2023

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 Summerlin South, NV.

The USDA hardiness zone is 9a for Summerlin South. This is sometimes also referred to as the growing or planting zone. These terms are used interchangeably.

Summerlin South's Growing Zone Details

USDA Growing Zone: 9a

Zip Codes: 89135

Longitude: -115.3324

Latitude: 36.1242

Lowest Avg Temperatures (F): 20 to 25

Map of the Summerlin South Area

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