Tucson, Arizona covers three USDA Hardiness Zones: 8b, 9a, and 9b, according to the 2023 USDA update. Most of Tucson, however, falls within Zone 9b. The 3 Planting Zones in Tucson are listed below.
- Zone 8b (15°F to 20°F/-9.4°C to -6.7°C) includes elevated or cooler regions of Tucson like Saguaro National Park East (85736) and the Santa Catalina Mountains.
- Zone 9a (20°F to 25°F/-6.7°C to -3.9°C) covers neighborhoods like Catalina Foothills (85718), Oro Valley (85737), Biosphere 2, and Marana.
- Zone 9b (25°F to 30°F/-3.9°C to -1.1°C) dominates Tucson, including Downtown (85701), Reid Park (85716), the University of Arizona, and Davis-Monthan Air Force Base.
Pinpoint your Tucson, Arizona, USDA zone using our three tools given below, Zipcode to planting zone tool, Easy location based interactive map or by using planting zone table.
Tucson Planting Zones by ZipCode
Enter 5 digit Tucson zipcode to find its USDA Planting zone.
Tucson Planting Zones Map
Select or type your Tucson location in the selection box below, to fins its USDA Growing zone.
City Name
Tucson Area Planting Zone
Planting Zones
Planting Zones
Tucson Planting Zones Table
The table below lists all the locations in Tucson alongwith their USDA Hardiness zones.
| Tucson Location | Planting Zone |
|---|---|
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Tucson Growing Zones
Tucson, Arizona, spans three USDA Hardiness Zones-8b, 9a, and 9b-with most of the city falling within Zone 9b.
Zone 8b
Zone 8b (15°F to 20°F/-9.4°C to -6.7°C) includes elevated regions like Saguaro National Park East (85736) and the Santa Catalina Mountains. This zone experiences occasional light frosts, making it suitable for drought-resistant ornamentals like Desert Willow (Chilopsis linearis) and Yucca (Yucca spp.).
Zone 9a
Zone 9a (20°F to 25°F/-6.7°C to -3.9°C) covers Tucson neighborhoods such as Catalina Foothills (85718) and Oro Valley (85737). This zone support heat-tolerant shrubs like Texas Sage (Leucophyllum frutescens) and Brittlebush (Encelia farinosa).
Zone 9b
Zone 9b (25°F to 30°F/-3.9°C to -1.1°C) dominates Tucson’s urban core, including Downtown (85701) and the University of Arizona. Ideal plants for this zone include Palo Verde (Parkinsonia spp.) and Creosote Bush (Larrea tridentata).