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


Shiitake Mushroom Kit

Wooden Chicken Coop

Steel Hori Hori Weeding Knife

Brass Decorative Faucet Handle

Hoeing Ain't Easy Garden Sign
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 Mark is in growing zone 5b this means that plants there can survive temperatures as low as 10 to 15 degrees Fahrenheit. Plants chosen for Mark'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: 5b
Zip Codes: 61327, 61326, 61340
Longitude: -89.2551
Latitude: 41.2623
Lowest Avg Temperatures (F): -15 to -10

Seed Starting Trays

Wooden Chicken Coop

Brass Decorative Faucet Handle

Raised Garden Bed Kit
