What Growing Zone Is Union?

Our records indicate the United States Department of Agriculture has given Union a growing zone designation of 8b. Sometimes also called the planting or hardiness zone, this zone number gives you an idea of what plants can and cannot grow in Union's climate based on the average extreme annual temperature.Our data is based on the latest 2023 USDA maps, which used Union's weather data from 1991 - 2020 in their analysis.

Latest AL growing zone map

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

Large Greenhouse Kit

Spacious greenhouse for extending your growing season.

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.

Raised Garden Bed Kit

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

Shiitake Mushroom Kit

Grow your own delicious shiitake mushrooms at home.

Latest AL 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 Union is in growing zone 8b this means that plants there can survive temperatures as low as 15 to 20 degrees Fahrenheit. Plants for Union'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 Union 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!

View this profile on Instagram
The Plant Guide Online (@plantguideonline) • Instagram photos and videos

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 Union, AL.

The USDA hardiness zone is 8b for Union. This is sometimes also referred to as the growing or planting zone. These terms are used interchangeably.

Union's Growing Zone Details

USDA Growing Zone: 8b

Zip Codes: 35462

Longitude: -87.9071

Latitude: 32.9938

Lowest Avg Temperatures (F): 15 to 20

Hoeing Ain't Easy Garden Sign

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

Fiskars Garden Harvest Basket

Sturdy basket for collecting and carrying your garden harvest.

Reusable Grow Bags

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

Raised Garden Planter

Elevated planter for easy access and better drainage.

Brass Decorative Faucet Handle

Elegant brass handle to enhance your garden faucet.

Map of the Union Area

All Towns In AL

Abanda Abbeville Adamsville Addison Akron Alabaster Albertville Alexander City Alexandria Aliceville Allgood Altoona Andalusia Anderson Anniston Arab Ardmore Argo Ariton Arley Ashford Ashland Ashville Athens Atmore Attalla Auburn Autaugaville Avon Axis Babbie Baileyton Bakerhill Ballplay Banks Bay Minette Bayou La Batre Bear Creek Beatrice Beaverton Belgreen Belk Bellamy Belle Fontaine Benton Berlin Berry Bessemer Billingsley Birmingham Black Blountsville Blue Ridge Blue Springs Boaz Boligee Bon Air Bon Secour Boykin Brantley Brantleyville Brent Brewton Bridgeport Brighton Brilliant Bristow Cove Brook Highland Brookside Brookwood Broomtown Brundidge Bucks Butler Calera Calvert Camden Camp Hill Carbon Hill Cardiff Carlisle-Rockledge Carlton Carolina Carrollton Castleberry Catherine Cedar Bluff Center Point Centre Centreville Chatom Chelsea Cherokee Chickasaw Childersburg Choccolocco Chunchula Citronelle Clanton Clay Clayhatchee Clayton Cleveland Clio Coaling Coats Bend Coffee Springs Coffeeville Coker Collinsville Colony Columbia Columbiana Concord Coosada Cordova Cottondale Cottonwood County Line Courtland Cowarts Creola Crossville Cuba Cullman Cullomburg Cusseta Dadeville Daleville Daphne Dauphin Island Daviston Dayton Deatsville Decatur Deer Park Delta Demopolis Detroit Dodge City Dora Dothan Double Springs Douglas Dozier Dunnavant Dutton Eagle Point East Brewton East Point Eclectic Edgewater Edwardsville Egypt Elba Elberta Eldridge Elkmont Elmore Emelle Emerald Mountain Enterprise Epes Equality Ethelsville Eufaula Eunola Eutaw Eva Evergreen Excel Fairfield Fairford Fairhope Fairview Falkville Faunsdale Fayette Fayetteville Fitzpatrick Five Points Flomaton Florala Florence Foley Forestdale Forkland Fort Deposit Fort Payne Fort Rucker Franklin Fredonia Frisco City Fruitdale Fruithurst Fulton Fultondale Fyffe Gadsden Gainesville Gallant Gantt Garden City Gardendale Gaylesville Geiger Geneva Georgiana Geraldine Gilbertown Glen Allen Glencoe Glenwood Goldville Good Hope Goodwater Gordo Gordon Gordonville Goshen Graham Grand Bay Grant Grayson Valley Graysville Greensboro Greenville Grimes Grove Hill Gu-Win Guin Gulf Shores Gulfcrest Guntersville Gurley Hackleburg Hackneyville Haleburg Haleyville Hamilton Hammondville Hanceville Hanover Harpersville Hartford Hartselle Harvest Hatton Hayden Hayneville Hazel Green Headland Heath Heflin Helena Henagar Highland Lake Highland Lakes Hillsboro Hissop Hobson Hobson City Hodges Hokes Bluff Hollins Hollis Crossroads Holly Pond Hollywood Holt Holtville Homewood Hoover Horn Hill Hueytown Huguley Huntsville Hurtsboro Hytop Ider Indian Springs Village Irondale Ivalee Jackson Jacksons' Gap Jacksonville Jasper Jemison Joppa Kansas Kellyton Kennedy Killen Kimberly Kinsey Kinston La Fayette Ladonia Lake View Lanett Langston Leeds Leesburg Leighton Leroy Lester Level Plains Lexington Libertyville Lillian Lincoln Linden Lineville Lipscomb Lisman Littleville Livingston Loachapoka Lockhart Locust Fork Lookout Mountain Louisville Lowndesboro Loxley Luverne Lynn Macedonia Madison Madrid Magnolia Springs Malcolm Malvern Maplesville Marbury Margaret Marion Maytown McCalla McDonald Chapel McIntosh McKenzie McMullen Meadowbrook Megargel Memphis Mentone Meridianville Midfield Midland City Midway Mignon Millbrook Millerville Millport Millry Minor Mobile Monroeville Montevallo Montgomery Moody Moores Mill Mooresville Morris Morrison Crossroads Mosses Moulton Moundville Mount Olive Mount Vernon Mountain Brook Movico Mulga Munford Muscle Shoals Myrtlewood Nanafalia Nances Creek Napier Field Natural Bridge Nauvoo Nectar Needham New Brockton New Hope New Market New Site New Union Newbern Newton Newville Nixburg North Courtland North Johns Northport Notasulga Oak Grove Oak Hill Oakman Odenville Ohatchee Oneonta Onycha Opelika Opp Orange Beach Orrville Our Town Owens Cross Roads Oxford Ozark Paint Rock Panola Parrish Pea Ridge Pelham Pell City Pennington Penton Perdido Perdido Beach Peterman Petrey Phenix City Phil Campbell Pickensville Piedmont Pike Road Pinckard Pine Apple Pine Hill Pine Level Pine Ridge Pinson Pisgah Pleasant Grove Pleasant Groves Point Clear Pollard Powell Prattville Priceville Prichard Providence Putnam Ragland Rainbow City Rainsville Ranburne Ray Red Bay Red Level Redland Redstone Arsenal Reece City Reeltown Reform Rehobeth Remlap Repton Ridgeville River Falls Riverside Riverview Roanoke Robertsdale Rock Creek Rock Mills Rockford Rockville Rogersville Rosa Russellville Rutledge Saks Samson Sand Rock Sanford Saraland Sardis City Satsuma Scottsboro Section Selma Selmont-West Selmont Semmes Sheffield Shelby Shiloh Shoal Creek Shorter Silas Silverhill Sims Chapel Sipsey Skyline Slocomb Smiths Station Smoke Rise Snead Somerville South Vinemont Southside Spanish Fort Spring Garden Springville Spruce Pine St. Florian St. Stephens Standing Rock Stapleton Steele Sterrett Stevenson Stewartville Stockton Sulligent Sumiton Summerdale Susan Moore Sweet Water Sylacauga Sylvan Springs Sylvania Talladega Talladega Springs Tallassee Tarrant Taylor Theodore Thomaston Thomasville Thorsby Tibbie Tidmore Bend Tillmans Corner Town Creek Toxey Trafford Triana Trinity Troy Trussville Tuscaloosa Tuscumbia Tuskegee Twin Underwood-Petersville Union Union Grove Union Springs Uniontown Uriah Valley Valley Grande Valley Head Vance Vandiver Vernon Vestavia Hills Vina Vincent Vinegar Bend Vredenburgh Wadley Waldo Walnut Grove Warrior Waterloo Waverly Weaver Webb Wedowee Weogufka West Blocton West End-Cobb Town West Jefferson West Point Westover Wetumpka Whatley White Hall White Plains Whitesboro Wilsonville Wilton Winfield Woodland Woodstock Woodville Yellow Bluff York

Metal Seed Storage Box

Organized storage solution for your seed collection.

Fiskars Garden Harvest Basket

Sturdy basket for collecting and carrying your garden harvest.

Seed Starting Trays

Perfect for starting seeds indoors before transplanting to your garden.

Stainless Steel Garden Tool Set

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

Worm Composting Kit

Complete kit for starting your own worm composting system.

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.