Ottumwa's Hardiness Zone

Our records indicate the United States Department of Agriculture has given Ottumwa a growing zone designation of 5b. Sometimes also called the planting zone or hardiness zone, this zone number gives you an idea of what plants can and cannot grow in Ottumwa's climate. If you are looking for plants suitable for growing in the Ottumwa area, head on over to our page on plants that grow well in Ottumwa, IA.

Deluxe Plastic Watering Can

High-capacity watering can with comfortable grip and precise spout.

Worm Composting Kit

Complete kit for starting your own worm composting system.

Metal Arbor Trellis

Decorative arbor trellis for climbing plants and garden entrance.

Hoeing Ain't Easy Garden Sign

Fun and decorative garden sign to add personality to your space.

Brass Watering Can

Elegant brass watering can with classic design and durability.

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 Ottumwa is in growing zone 5b this means that plants there can survive temperatures as low as 10 to 15 degrees Fahrenheit. Plants chosen for Ottumwa'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.

Large Greenhouse Kit

Spacious greenhouse for extending your growing season.

Brass Decorative Faucet Handle

Elegant brass handle to enhance your garden faucet.

Wooden Chicken Coop

Spacious and secure home for your backyard chickens.

Worm Composting Kit

Complete kit for starting your own worm composting system.

Rustic Iron Garden Trellis

Sturdy trellis for supporting climbing plants and vines.