The Plant Guide Almanac  ·  Vol. XV  ·  № 20  ·  Published in the United States
APR 26, 2026
Established 2011 · Intellica, LLC

The Plant Guide Almanac

A field reference of growing zones & plants for every town in America
USDA Hardiness Maps · 2023
Weather data 1991—2020

What Growing Zone Is Tubac?

Our records indicate the United States Department of Agriculture has given Tubac a growing zone designation of 8b. Sometimes also called the planting or hardiness zone, this zone number gives you an idea of what plants can and cannot grow in Tubac's climate based on the average extreme annual temperature.Our data is based on the latest 2023 USDA maps, which used Tubac's weather data from 1991 - 2020 in their analysis.

— Plate —AZ · USDA hardiness
map of growing zone 8b
Latest AZ growing zone map

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

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Show Tubac's growing zone on my site

— Plate —AZ · USDA hardiness
map of growing zone 8b
Latest AZ 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 Tubac is in growing zone 8b this means that plants there can survive temperatures as low as 15 to 20 degrees Fahrenheit. Plants for Tubac'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 Tubac 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!

Ready to start planning your garden? Browse our curated list of plants recommended for Tubac, AZ that are matched to this hardiness zone.

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 Tubac, AZ.

№ 01What hardiness zone is Tubac, AZ?+

The USDA hardiness zone is 8b for Tubac. This is sometimes also referred to as the growing or planting zone. These terms are used interchangeably.

№ 02What does growing zone 8b mean for Tubac, AZ?+

Growing zone 8b means that plants in Tubac, AZ can survive temperatures as low as 15 to 20 degrees Fahrenheit. This zone designation helps you choose plants that will thrive in your local climate conditions.

№ 03How do I use the growing zone information for Tubac?+

Keep your growing zone of 8b in mind when choosing plants for Tubac. The growing zone tells you the average low temperatures that occur each year in Tubac. If you select plants from zones other than 8b, then you may need to provide additional care during the coldest months of the year.

№ 04Has Tubac's growing zone changed?+

The USDA updated their hardiness zone maps in 2023. As a result, Tubac may have experienced zone changes. Some areas of the Southeast warmed by half a zone, while areas of the Western United States had their zones lowered as a result of additional data becoming available.

№ 05What plants grow best in zone 8b?+

Visit our page on the best plants for Tubac to see a full list recommendations for the area.

№ 06Can I grow plants from other zones in Tubac?+

While you can try plants from other zones, they may need winter protection or indoor shelter during cold spells. Focus on plants recommended for Tubac's climate for the best results.

Tubac's Growing Zone Details

USDA Growing Zone: 8b

Zip Codes:

Longitude: -111.0586

Latitude: 31.6111

Lowest Avg Temperatures (F): 15 to 20

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Map of the Tubac Area

— Map —Lat 31.6111, Lon -111.0586
Tile data © Google Maps

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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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