Harbison Canyon's Hardiness Zone

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Our records indicate the United States Department of Agriculture has given Harbison Canyon a 2023 growing zone designation of 10a. Sometimes also called the planting zone or hardiness zone, this zone number gives you an idea of what plants can and cannot grow in Harbison Canyon's climate. If you are looking for plants suitable for growing in the Harbison Canyon area, head on over to our page on plants that grow well in Harbison Canyon, CA.

Understanding your growing zone is very important because it is a measure of the lowest temperature that a plant can survive, helping you to decide what plants would grow best in your particular climate. Since Harbison Canyon is in growing zone 10a this means that plants there can survive temperatures as low as 10 to 15 degrees Fahrenheit. Plants chosen for Harbison Canyon'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.

2023 USDA Growing Zone: 10a

Zip Codes: 92021, 92019, 91901

Longitude: -116.8381

Latitude: 32.8273

Lowest Avg Temperatures (F): 30 to 35