What Growing Zone Is Rancho Tehama Reserve?

Our records indicate the United States Department of Agriculture has given Rancho Tehama Reserve 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 Rancho Tehama Reserve's climate based on the average extreme annual temperature.Our data is based on the latest 2023 USDA maps, which used Rancho Tehama Reserve's weather data from 1991 - 2020 in their analysis.

map of growing zone 9b (Northern California)map of growing zone 9bLatest CA growing zone map

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

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map of growing zone 9b (Northern California)map of growing zone 9bLatest 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 Rancho Tehama Reserve is in growing zone 9b this means that plants there can survive temperatures as low as 25 to 30 degrees Fahrenheit. Plants for Rancho Tehama Reserve'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 Rancho Tehama Reserve 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 Rancho Tehama Reserve, CA.

The USDA hardiness zone is 9b for Rancho Tehama Reserve. This is sometimes also referred to as the growing or planting zone. These terms are used interchangeably.

Rancho Tehama Reserve's Growing Zone Details

USDA Growing Zone: 9b

Zip Codes: 96021

Longitude: -122.442

Latitude: 40.001

Lowest Avg Temperatures (F): 25 to 30

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Map of the Rancho Tehama Reserve Area

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Shiitake Mushroom Kit

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Grow your own delicious shiitake mushrooms at home.
Reusable Grow Bags

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Breathable fabric grow bags that promote healthy root growth for your vegetables and fruits.
Fiskars Garden Harvest Basket

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Sturdy basket for collecting and carrying your garden harvest.
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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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