Louisiana: Plant Hardiness Zones, Climate & Soil Conditions Guide

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Louisiana’s agricultural industry includes forestry, fishing, and farming.

The state is a leading producer of sugarcane, rice, soybeans, crawfish, cattle, and hogs. Other important crops include corn, wheat, and cotton.

Louisiana’s aquaculture industry is also significant, producing oysters, shrimp, and crabs.

US Plant Hardiness Zone Map

Let’s get started by checking out the US Plant Hardiness Zone Map of the state.

Plant Hardiness Zone Map for Louisiana


Louisiana has a mainly humid subtropical climate with long hot summers and short, mild winters.

Summers are hot and humid in Louisiana, with frequent afternoon thunderstorms.

The June to September period has average high temperatures exceeding 90°F, while nights’ temperatures drop below 70°F.

Winters are mild in the south, with day temperatures often above 66°F, while the north gets colder days with temperatures below 59°F.


The average rainfall in Louisiana ranges from 48 inches in the north to 75 inches in the south.

Rainfall occurs throughout the year, with a predominantly wet season from April to September and the dry season from October to March.

Soil Type

The below map shows the soil order distribution of the state.

Ecoregions Of Louisiana

Now, let us discuss this map in detail.

Soil Order Of Louisiana

Soil / Sub OrderLocationCharacteristics
Alfisols/Aqualfs and UdalfsThese are spread across the state except in the southeast part of the state.1. Aqualfs have warm and aquic conditions
2. Udalfs have a udic moisture regime.
Ultisols/UdultsIn the upper west and west coastal plain.1. Udults are the more or less freely drained, relatively humus-poor Ultisols that have a udic moisture regime.
Vertisols/Aquerts and UdertsAquerts in the Mississippi River Alluvial plain and Uderts in the west coastal plain.1. Aquerts are the wet Vertisols.
2. Uderts are the Vertisols of humid areas.
Entisols/Fluvents and AquentsFluvents in the west coastal plain and Aquents in the Gulf Coast Prairies and marshes.1. Fluvents are the more or less freely drained Entisols that formed in recent water-deposited sediments.
2. Aquents are the wet Entisols.
Histosols/SapristsIn the Gulf Coast Prairies and marshes.1. Saprists are the wet Histosols in which the organic materials are well decomposed.