What Growing Zone Is Hanna?

Our records indicate the United States Department of Agriculture has given Hanna a growing zone designation of 5a. Sometimes also called the planting or hardiness zone, this zone number gives you an idea of what plants can and cannot grow in Hanna's climate based on the average extreme annual temperature. .Our data is based on the latest 2023 USDA maps, which used Hanna's weather data from 1991 - 2020 in their analysis.

If you are looking for plants suitable for growing in the Hanna area, head on over to our page on plants that grow well in Hanna, WY.

Cluck Around Sign

Whimsical sign for your chicken coop area.

Small Greenhouse Kit

Compact greenhouse perfect for small spaces.

Stainless Steel Garden Tool Set

Complete garden tool set with heavy-duty stainless steel tools for all your gardening needs.

Steel Hori Hori Weeding Knife

Versatile Japanese-style gardening knife for weeding and planting.

Raised Garden Planter

Elevated planter for easy access and better drainage.

Latest WY growing zone map

The growing zone is a measure of the lowest temperature that a plant can survive based on average lowest year temperatures, helping you to decide what plants would grow best in your particular climate. Since Hanna is in growing zone 5a this means that plants there can survive temperatures as low as -20 to -15 degrees Fahrenheit. Plants for Hanna'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.

Some zones may have been changed by the USDA as of 2023. To see if the Hanna area has been affected, refer to this map of half zone changes from the 2012 version of the USDA zones to the 2023 version.

Half zone changes from 2012 to 2023

The updated map shows that over half of the Southeast has warmed by about half a zone. For gardeners, that means you can now grow plants that tolerate a bit more heat and less frost than before. The tan areas reflect this shift. Meanwhile, the white areas had slight temperature changes, but not enough to move them into a new zone. In the Western U.S., a few spots shifted cooler. That’s not due to a colder climate, but because the new map uses a larger dataset, giving a more accurate picture of local conditions. It's important to keep track of these changes when planning your garden!

Hanna's Growing Zone Details

Steel Hori Hori Weeding Knife

Versatile Japanese-style gardening knife for weeding and planting.

Worm Composting Kit

Complete kit for starting your own worm composting system.

Raised Garden Bed Kit

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

Hoeing Ain't Easy Garden Sign

Fun and decorative garden sign to add personality to your space.

Stainless Steel Garden Tool Set

Complete garden tool set with heavy-duty stainless steel tools for all your gardening needs.

Map of the Hanna Area

All Towns In WY

Raised Garden Bed Kit

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

Deluxe Plastic Watering Can

High-capacity watering can with comfortable grip and precise spout.

Fiskars Garden Harvest Basket

Sturdy basket for collecting and carrying your garden harvest.

Stainless Steel Garden Tool Set

Complete garden tool set with heavy-duty stainless steel tools for all your gardening needs.

Metal Arbor Trellis

Decorative arbor trellis for climbing plants and garden entrance.

Plants For Other States:

Looking for the best plants in a different area of the United States? Click on a button below to find plants that are ideal for that state's temperatures.

Wooden Chicken Coop

Spacious and secure home for your backyard chickens.

Raised Garden Planter

Elevated planter for easy access and better drainage.

Large Greenhouse Kit

Spacious greenhouse for extending your growing season.

Deluxe Plastic Watering Can

High-capacity watering can with comfortable grip and precise spout.

Brass Decorative Faucet Handle

Elegant brass handle to enhance your garden faucet.