Ottawa's Hardiness Zone

Our records indicate the United States Department of Agriculture has given Ottawa 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 Ottawa's climate. If you are looking for plants suitable for growing in the Ottawa area, head on over to our page on plants that grow well in Ottawa, IL.

Brass Decorative Faucet Handle

Elegant brass handle to enhance your garden faucet.

Self Watering Plant Pots

Innovative pots that maintain optimal moisture levels.

Cluck Around Sign

Whimsical sign for your chicken coop area.

Raised Garden Bed Kit

Easy-to-assemble raised garden bed for better soil control and drainage.

Small Greenhouse Kit

Compact greenhouse perfect for small spaces.

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

Raised Garden Planter

Elevated planter for easy access and better drainage.

Self Watering Plant Pots

Innovative pots that maintain optimal moisture levels.

Rustic Iron Garden Trellis

Sturdy trellis for supporting climbing plants and vines.

Seed Starting Trays

Perfect for starting seeds indoors before transplanting to your garden.

Brass Decorative Faucet Handle

Elegant brass handle to enhance your garden faucet.