Ironton's Hardiness Zone

Our records indicate the United States Department of Agriculture has given Ironton a growing zone designation of 6b. Sometimes also called the planting zone or hardiness zone, this zone number gives you an idea of what plants can and cannot grow in Ironton's climate. If you are looking for plants suitable for growing in the Ironton area, head on over to our page on plants that grow well in Ironton, MO.

Fiskars Garden Harvest Basket

Sturdy basket for collecting and carrying your garden harvest.

Raised Garden Planter

Elevated planter for easy access and better drainage.

Steel Hori Hori Weeding Knife

Versatile Japanese-style gardening knife for weeding and planting.

Rustic Iron Garden Trellis

Sturdy trellis for supporting climbing plants and vines.

Metal Seed Storage Box

Organized storage solution for your seed collection.

Understanding your growing zone is very important because it is a measure of the lowest temperature that a plant can survive, helping you to decide what plants would grow best in your particular climate. Since Ironton is in growing zone 6b this means that plants there can survive temperatures as low as 10 to 15 degrees Fahrenheit. Plants chosen for Ironton'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.

USDA Growing Zone: 6b

Zip Codes: 63650

Longitude: -90.6379

Latitude: 37.5984

Lowest Avg Temperatures (F): -5 to 0