Smithland's Hardiness Zone
Our records indicate the United States Department of Agriculture has given Smithland a growing zone designation of 5a. Sometimes also called the planting zone or hardiness zone, this zone number gives you an idea of what plants can and cannot grow in Smithland's climate. If you are looking for plants suitable for growing in the Smithland area, head on over to our page on plants that grow well in Smithland, IA.


Worm Composting Kit

Rustic Iron Garden Trellis

Cluck Around Sign

Hoeing Ain't Easy Garden Sign

Raised Garden Planter
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 Smithland is in growing zone 5a this means that plants there can survive temperatures as low as 10 to 15 degrees Fahrenheit. Plants chosen for Smithland'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: 5a
Zip Codes: 51056
Longitude: -95.9315
Latitude: 42.2288
Lowest Avg Temperatures (F): -20 to -15

Metal Seed Storage Box

Hydroponic Garden Grow Kit

Raised Garden Planter

Large Greenhouse Kit
