Seward's Hardiness Zone

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

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

Zip Codes: 99664

Longitude: -149.3925

Latitude: 60.1124

Lowest Avg Temperatures (F): -15 to -10