Calvin's Hardiness Zone

Our records indicate the United States Department of Agriculture has given Calvin a growing zone designation of 7b. Sometimes also called the planting zone or hardiness zone, this zone number gives you an idea of what plants can and cannot grow in Calvin's climate. If you are looking for plants suitable for growing in the Calvin area, head on over to our page on plants that grow well in Calvin, OK.

Raised Garden Planter

Elevated planter for easy access and better drainage.

Seed Starting Trays

Perfect for starting seeds indoors before transplanting to your garden.

Brass Watering Can

Elegant brass watering can with classic design and durability.

Hoeing Ain't Easy Garden Sign

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

Steel Hori Hori Weeding Knife

Versatile Japanese-style gardening knife for weeding and planting.

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 Calvin is in growing zone 7b this means that plants there can survive temperatures as low as 10 to 15 degrees Fahrenheit. Plants chosen for Calvin'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.

Brass Watering Can

Elegant brass watering can with classic design and durability.

Shiitake Mushroom Kit

Grow your own delicious shiitake mushrooms at home.

Hydroponic Garden Grow Kit

Grow fresh herbs and vegetables year-round with this indoor hydroponic garden system.

Hoeing Ain't Easy Garden Sign

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

Steel Hori Hori Weeding Knife

Versatile Japanese-style gardening knife for weeding and planting.