Cynthiana's Hardiness Zone

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

Raised Garden Planter

Elevated planter for easy access and better drainage.

Brass Decorative Faucet Handle

Elegant brass handle to enhance your garden faucet.

Raised Garden Bed Kit

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

Large Greenhouse Kit

Spacious greenhouse for extending your growing season.

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 Cynthiana is in growing zone 6b this means that plants there can survive temperatures as low as 10 to 15 degrees Fahrenheit. Plants chosen for Cynthiana'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: 45612, 45624

Longitude: -83.3485

Latitude: 39.1736

Lowest Avg Temperatures (F): -5 to 0