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


Hydroponic Garden Grow Kit

Fiskars Garden Harvest Basket

Rustic Iron Garden Trellis

Metal Seed Storage Box

Small Greenhouse Kit
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 Williamson is in growing zone 5b this means that plants there can survive temperatures as low as 10 to 15 degrees Fahrenheit. Plants chosen for Williamson'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: 50272
Longitude: -93.2569
Latitude: 41.0882
Lowest Avg Temperatures (F): -15 to -10

Raised Garden Bed Kit

Hoeing Ain't Easy Garden Sign

Metal Seed Storage Box

Metal Arbor Trellis
