Tennessee: Plant Hardiness Zones, Climate & Soil Conditions

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The state of Tennessee is located in the southeastern region of the United States.

The state has a population of approximately 6.6 million people and covers an area of approx 42,000 square miles.

Tennessee is known for its country music, its scenic beauty, and its production of tobacco, peanuts, and soybeans. Tennessee has a long history of agriculture.

The state was once the leading producer of tobacco in the United States.

Today, tobacco is still an important crop, but peanuts and soybeans have become increasingly important in the state’s agricultural economy.

In recent years, the state has also begun to produce wine.

Plant Hardiness Zone Map

Let us focus on the US Plant Hardiness Zone Map.

Plant Hardiness Zone Map for Tennessee

Climate

Tennessee has a chiefly humid subtropical type of climate in the majority of the state and oceanic in a minor part of the east.

Summers are hot and humid in Tennessee, with the average daily temperatures above the 90°F mark at the peak of the season.  

Winters range from mild to cold, with average low temperatures in the range of 22-33°F during the trough of January.

Precipitation

Tennessee receives generous precipitation that averages over 50 inches annually.

Rainfall is throughout the year, with the wettest period between December and April and the driest between August and October

Snowfall is substantially over 80 inches in the high mountains in the east, while it is hardly more than 5 inches in the west. 

Soil Type

Now, we will see the ecoregions present in the state.

The table that follows will give us some ideas on the soil orders’ distribution in the state.

Soil Order Of Tennessee

Soil / Sub OrderLocationCharacteristics
Entisols/Aquents and FluventsIn the western part of the state.1. Aquents are the wet Entisols.
2. Fluvents are the more or less freely drained Entisols that formed in recent water-deposited sediments.
Inceptisols/UdeptsIn the Blue Ridge Mountains and Ridge and Valley.1. Udepts are mainly freely drained Inceptisols that have a udic or perudic moisture regime.
Alfisols/UdalfsIn most of the states except the eastern side.1. Udalfs have a udic moisture regime.
Ultisols/UdultsIt is almost found all over the state.1. Udults are the more or less freely drained, relatively humus-poor Ultisols that have a udic moisture regime.
Mollisols/AquollsA small part in the interior plateau of the state.1. Aquolls are the wet Mollisols.