Ashton's Hardiness Zone

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Our records indicate the United States Department of Agriculture has given Ashton a 2023 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 Ashton's climate. If you are looking for plants suitable for growing in the Ashton area, head on over to our page on plants that grow well in Ashton, ID.

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 Ashton is in growing zone 5a this means that plants there can survive temperatures as low as 10 to 15 degrees Fahrenheit. Plants chosen for Ashton'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.

2023 USDA Growing Zone: 5a

Zip Codes: 83420

Longitude: -111.4482

Latitude: 44.0734

Lowest Avg Temperatures (F): -20 to -15