Arizona: Plant Hardiness Zones, Climate & Soil Conditions

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The climate in Arizona is ideal for growing a wide variety of crops.

The state has warm winters and hot summers, which allow for year-round farming. Arizona also has a large amount of land that is suitable for agriculture.

There are many different types of farms in Arizona, from small family farms to large commercial operations. One of the state’s most famous crops is cotton.

Arizona produces more cotton than any other state in the country. Other important crops grown in Arizona include lettuce, tomatoes, hay, wheat, and barley.

Plant Hardiness Zones for Arizona

Let us take a glimpse of the Zone Map of the state of Arizona.

Plant Hardiness Zone Map for Arizona

Climate

The state of Arizona experiences a varied climate throughout the state. About half of the state is semi-arid, one-third is arid and the rest is humid.

The basin and the Range region experiences semi-arid and arid climates.

The summers are usually hot and dry with temperatures between 90˚F and 120˚F.

In winter, the cold air masses push the temperature below 0˚F.

Precipitation

Since most of the state is arid to semi-arid, it receives a scanty rainfall of about less than 3 inches in the southwest to around 40 inches in the White Mountains of east-central Arizona.

Soil Type

The below map shows the ecological regions of the state.

Picture and Color keys for Arizona

Now, let us look at the table below to understand the soil distribution of the state.

Soil Order For Arizona

Soil / Sub OrderLocationCharacteristics
Alfisols/UstalfsIn forests and woodlands1. Have a ustic soil moisture regime
2. Supports savanna and grassland vegetation
Entisols/Orthends, Psammants, and a few FluventsIn the desert, forest, and woodland1. Fluvents are the more or less freely drained Entisols that are formed in recent
2. Orthends are commonly found on a recent erosional surface
3.
Psammants soils are sandy in all layers. They are among the most productive rangeland soils in some arid and semiarid climates
Aridisols/ArgidsThese are mostly found in the Tundra region1. Have an argillic or natric horizon.
2. Accumulation of soluble materials in some layers of the soil are common
Inceptisols/UsteptsThese soils are found in small amounts in the woodland1. These are freely drained Inceptisols that have a ustic moisture regime.
Mollisols/UstollsThese soils are also found in small amounts in the woodland and forest region.1. They are the more or less freely drained Mollisols of sub-humid to semiarid climates.

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