What Growing Zone Is Harrison?

Our records indicate the United States Department of Agriculture has given Harrison a growing zone designation of 6b. Sometimes also called the planting or hardiness zone, this zone number gives you an idea of what plants can and cannot grow in Harrison's climate based on the average extreme annual temperature.Our data is based on the latest 2023 USDA maps, which used Harrison's weather data from 1991 - 2020 in their analysis.

Latest ID growing zone map

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

Hoeing Ain't Easy Garden Sign

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

Metal Arbor Trellis

Decorative arbor trellis for climbing plants and garden entrance.

Large Greenhouse Kit

Spacious greenhouse for extending your growing season.

Fiskars Garden Harvest Basket

Sturdy basket for collecting and carrying your garden harvest.

Hydroponic Garden Grow Kit

Grow fresh herbs and vegetables year-round with this indoor hydroponic garden system.

Latest ID 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 Harrison is in growing zone 6b this means that plants there can survive temperatures as low as -5 to 0 degrees Fahrenheit. Plants for Harrison'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 map of the United States

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

map of usda hardiness zone changes from 2012 to 2023

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!

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Hardiness Zone FAQ

Have questions about hardiness zones and what they mean for your garden? Check out our FAQ below for quick answers to common questions about USDA hardiness zones and how they affect plant selection in Harrison, ID.

The USDA hardiness zone is 6b for Harrison. This is sometimes also referred to as the growing or planting zone. These terms are used interchangeably.

Harrison's Growing Zone Details

USDA Growing Zone: 6b

Zip Codes: 83833

Longitude: -116.8034

Latitude: 47.4675

Lowest Avg Temperatures (F): -5 to 0

Brass Watering Can

Elegant brass watering can with classic design and durability.

Steel Hori Hori Weeding Knife

Versatile Japanese-style gardening knife for weeding and planting.

Wooden Chicken Coop

Spacious and secure home for your backyard chickens.

Reusable Grow Bags

Breathable fabric grow bags that promote healthy root growth for your vegetables and fruits.

Self Watering Plant Pots

Innovative pots that maintain optimal moisture levels.

Map of the Harrison Area

All Towns In ID

Aberdeen Acequia Albion American Falls Ammon Arbon Valley Arco Arimo Ashton Athol Atomic City Avimor Bancroft Banks Basalt Bellevue Bennington Blackfoot Blanchard Bliss Bloomington Boise Bonners Ferry Bovill Bruneau Buhl Burley Butte City Caldwell Cambridge Carey Cascade Castleford Challis Chubbuck Clark Fork Clayton Clifton Coeur d'Alene Conkling Park Coolin Cottonwood Council Craigmont Crouch Culdesac Dalton Gardens Dayton De Smet Deary Declo Dietrich Donnelly Dover Downey Driggs Drummond Dubois Eagle East Hope Eden Elk City Elk River Emmett Fairfield Ferdinand Fernan Lake Village Fernwood Filer Firth Fort Hall Franklin Fruitland Gannett Garden City Garden Valley Genesee Georgetown Glenns Ferry Gooding Grace Grand View Grangeville Greenleaf Groveland Hagerman Hailey Hamer Hammett Hansen Harrison Hauser Hayden Hayden Lake Hazelton Heyburn Hidden Springs Hollister Homedale Hope Horseshoe Bend Huetter Idaho City Idaho Falls Inkom Iona Irwin Island Park Jerome Juliaetta Kamiah Kellogg Kendrick Ketchum Kimberly Kooskia Kootenai Kuna Laclede Lapwai Lava Hot Springs Leadore Letha Lewiston Lewisville Lincoln Lost River Lowman Mackay Malad City Malta Marsing McCall McCammon Melba Menan Meridian Middleton Midvale Minidoka Montpelier Moore Moreland Moscow Mountain Home Mountain Home AFB Moyie Springs Mud Lake Mullan Murphy Murtaugh Nampa New Meadows New Plymouth Newdale Nezperce Notus Oakley Oldtown Onaway Orofino Osburn Oxford Paris Parker Parkline Parma Paul Payette Peck Pierce Pinehurst Placerville Plummer Pocatello Ponderay Post Falls Potlatch Preston Priest River Princeton Rathdrum Reubens Rexburg Richfield Rigby Riggins Ririe Riverside Roberts Robie Creek Rockford Rockford Bay Rockland Rupert Salmon Sandpoint Shelley Shoshone Silverton Smelterville Smiths Ferry Soda Springs Spencer Spirit Lake St. Anthony St. Charles St. Maries Stanley Star State Line Stites Sugar City Sun Valley Swan Valley Sweetwater Tensed Teton Tetonia Troy Twin Falls Tyhee Ucon Victor Viola Wallace Wardner Warm River Weippe Weiser Wendell Weston White Bird Wilder Winchester Worley Yellow Pine

Hoeing Ain't Easy Garden Sign

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

Hydroponic Garden Grow Kit

Grow fresh herbs and vegetables year-round with this indoor hydroponic garden system.

Deluxe Plastic Watering Can

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

Stainless Steel Garden Tool Set

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

Raised Garden Bed Kit

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

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.

Rustic Iron Garden Trellis

Sturdy trellis for supporting climbing plants and vines.

Steel Hori Hori Weeding Knife

Versatile Japanese-style gardening knife for weeding and planting.

Hydroponic Garden Grow Kit

Grow fresh herbs and vegetables year-round with this indoor hydroponic garden system.

Metal Arbor Trellis

Decorative arbor trellis for climbing plants and garden entrance.

Wooden Chicken Coop

Spacious and secure home for your backyard chickens.

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