Arkansas Planting Zones

Known as The Natural State, Arkansas offers diverse landscapes from the Ozark Mountains to the Mississippi Delta lowlands. The state spans five growing zones (6a, 6b, 7a, 7b, 8a) with average minimum temperatures ranging from -10° to 15°F (-23.3° to -9.4°C).

In this article, you will learn:

 

Arkansas's varied terrain, from highlands to fertile plains, presents unique opportunities and challenges for gardeners. Understanding your specific planting zone and adapting to local conditions is crucial for cultivating a thriving garden in Arkansas.

Image from USDA

Characteristics of Arkansas Planting Region

Arkansas has a humid subtropical climate characterized by hot summers and mild to cool winters. The state experiences all four seasons, with significant variations between the northwestern highlands and the southeastern lowlands. 

Most Arkansas receives ample rainfall throughout the year, with annual precipitation ranging from 40 to 60 inches.

As a gardener in Arkansas, you may encounter:

  • Hot, humid summers
  • Occasional drought periods
  • Severe thunderstorms
  • Potential for tornadoes
  • Late spring frosts (especially in northern regions)
  • Varying soil types 

Despite these challenges, Arkansas offers a generous growing season. Most areas enjoy frost-free days from early April through late October, providing about 180-210 days for cultivation annually.

Challenges of Growing in Arkansas

1. Temperature Fluctuations 

Arkansas can experience rapid temperature changes, particularly in spring and fall. Late frosts can damage early plantings, while summer heat can stress certain crops.

2. High Humidity 

The state's humid climate can foster fungal diseases and garden pest infestations. Proper air circulation and disease-resistant varieties are essential considerations.

3. Varied Soil Conditions 

Arkansas's diverse geology results in various soil types, from acidic in the highlands to alkaline in some lowland areas. Soil testing and amendment are often necessary for optimal growth.

The Benefits of Using a Greenhouse in Arkansas

While Arkansas's climate allows for a long outdoor growing season, a greenhouse can enhance your gardening experience and yield.

1. Extend Your Growing Season 

  • Without a Greenhouse: The typical outdoor growing season runs from early April to late October in central Arkansas. Northern areas may have a slightly shorter season due to later spring frosts.
  • With a Greenhouse: Greenhouse owners can start planting early in February and continue well into December. This extension allows for multiple harvests and the cultivation of crops that typically struggle in Arkansas's summer heat or winter cold.

Learn more about your area's specific growing dates and the best vegetables to plant in each part of Arkansas.

  

Customer images of their Greenhouse setup in a similar climate


2. Grow a Wider Variety of Vegetables Without a Greenhouse: 

  • Without a Greenhouse:  

Arkansas's outdoor gardens thrive with heat-loving plants such as:

  • Tomatoes
  • Peppers
  • Okra
  • Sweet Potatoes
  • Watermelons
  • Blackberries
  • Muscadines
  • With a Greenhouse: 

A controlled environment allows for a wider variety of plants, including those that prefer cooler temperatures or lower humidity. 

You could grow:

  • Lettuce
  • Spinach
  • Kale
  • Arugula
  • Swiss chard
  • Broccoli
  • Cauliflower
  • Peas
  • Brussels sprouts
  • Cabbage
  • Carrots
  • Radishes
  • Beets
  • Turnips
  • Celery
  • Cucumber
  • Bell peppers
  • Eggplant
  • Tomatoes
  • Green beans
  • Asparagus
  • Artichokes
  • Kohlrabi
  • Leeks

Why Planta Greenhouses?

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