Newcastle's Hardiness Zone

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

Steel Hori Hori Weeding Knife

Versatile Japanese-style gardening knife for weeding and planting.

Large Greenhouse Kit

Spacious greenhouse for extending your growing season.

Small Greenhouse Kit

Compact greenhouse perfect for small spaces.

Raised Garden Bed Kit

Easy-to-assemble raised garden bed for better soil control and drainage.

Raised Garden Planter

Elevated planter for easy access and better drainage.

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 Newcastle is in growing zone 5b this means that plants there can survive temperatures as low as 10 to 15 degrees Fahrenheit. Plants chosen for Newcastle'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: 84756

Longitude: -113.5644

Latitude: 37.6628

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