What Growing Zone Is Santa Ana?

Our records indicate the United States Department of Agriculture has given Santa Ana a growing zone designation of 10b. Sometimes also called the planting or hardiness zone, this zone number gives you an idea of what plants can and cannot grow in Santa Ana's climate based on the average extreme annual temperature.Our data is based on the latest 2023 USDA maps, which used Santa Ana's weather data from 1991 - 2020 in their analysis.

map of growing zone 10b (Northern California)map of growing zone 10bLatest CA growing zone map

If you are looking for plants suitable for growing in the Santa Ana area, head on over to our page on plants that grow well in Santa Ana, CA.

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map of growing zone 10b (Northern California)map of growing zone 10bLatest CA 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 Santa Ana is in growing zone 10b this means that plants there can survive temperatures as low as 35 to 40 degrees Fahrenheit. Plants for Santa Ana'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 Santa Ana 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 Santa Ana, CA.

The USDA hardiness zone is 10b for Santa Ana. This is sometimes also referred to as the growing or planting zone. These terms are used interchangeably.

Santa Ana's Growing Zone Details

USDA Growing Zone: 10b

Zip Codes:
92707, 92701, 92703, 92705, 92704, 92706, 92702, 92712, 92735, 92799

Longitude: -117.8819

Latitude: 33.7367

Lowest Avg Temperatures (F): 35 to 40

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Spacious greenhouse for extending your growing season.
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Decorative arbor trellis for climbing plants and garden entrance.
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Map of the Santa Ana Area

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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.

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