5 Planting Zones in Louisiana with Map

The 5 USDA planting zones in Louisiana are 8b, 9a, 9b, 10a, and 10b, according to the USDA’s latest 2023 data. The 5 USDA planting zones in Louisiana are listed below.

1. Zone 8b: Zone 8b covers northern Louisiana, with average annual minimum temperatures of 15°F to 20°F (-9.4°C to -6.7°C) and includes cities like Shreveport and Monroe.
2. Zone 9a: Zone 9a spans central Louisiana, featuring average annual minimum temperatures of 20°F to 25°F (-6.7°C to -3.9°C) with cities like Baton Rouge.
3. Zone 9b: Zone 9b encompasses southern Louisiana, with average annual minimums of 25°F to 30°F (-3.9°C to -1.1°C) and cities like New Orleans.
4. Zone 10a: Zone 10a includes Louisiana’s southernmost Gulf Coast, averaging 30°F to 35°F (-1.1°C to 1.7°C) and have coastal areas like Venice.
5. Zone 10b: Zone 10b covers the state’s warmest southern tip, with average annual minimums of 35°F to 40°F (1.7°C to 4.4°C).

Find your exact planting zone in Louisiana using, zip code to planting zone tool or Louisiana Planting Zones Interactive map, given below.

Search Louisiana Planting Zones by ZipCode

Planting Zones Louisiana Map

Please select or type your Louisiana location in the selction box below. Toggle map layers using top right corner button in map.

What are the 5 planting zones in Louisiana?

Zone 8b covers northern areas, while zone 9a spans central regions. Zone 9b includes southern cities like New Orleans, and zones 10a-10b cover the southernmost coast. The state features a north-south temperature gradient with cooler northern zones and progressively warmer southern zones toward the Gulf Coast.

1. Zone 8b

Zone 8b, shown in teal color on our map above, covers the northern part of Louisiana. This zone experiences average annual minimum temperatures ranging from 15°F to 20°F (-9.4°C to -6.7°C). It covers a large portion of the state’s northern region, including major cities like Shreveport, Monroe, and Ruston. The area experiences slightly cooler winters compared to the rest of the state, making it suitable for plants like Azalea that can tolerate brief cold snaps.

2. Zone 9a

Shown in light green color shade on our map, Zone 9a covers a broad central region across Louisiana. With average annual minimum temperatures between 20°F to 25°F (-6.7°C to -3.9°C), this zone represents a transition between the cooler north and the warmer south. It includes cities such as Alexandria, Lafayette, and Baton Rouge. This zone’s climate allows for an extended growing season and supports a range of plants like Crape Myrtle, including many subtropical species.

3. Zone 9b

Zone 9b, represented by the yellow color areas on our map, covers most of southern Louisiana. The average annual minimum temperatures in this zone range from 25°F to 30°F (-3.9°C to -1.1°C). This warmer zone have cities like New Orleans and Houma. The mild winters in this zone make it ideal for many tropical and subtropical plants like Southern Magnolia.

4. Zone 10a

The dark purple colored areas on our map above, Zone 10a is found in the southernmost parts of Louisiana, primarily along the Gulf Coast. This zone experiences average annual minimum temperatures between 30°F to 35°F (-1.1°C to 1.7°C). It includes coastal areas and cities like Venice and Boothville. The warm climate in this zone allows for year-round growing of many tropical plants like Hibiscus and is suitable for heat-loving species.

5. Zone 10b

The warmest zone in Louisiana, 10b, is shown in dark blue color on the map and covers only a tiny portion of the state’s southernmost tip. With average annual minimum temperatures ranging from 35°F to 40°F (1.7°C to 4.4°C), this zone represents the mildest winter conditions in Louisiana. It includes some of the state’s most southern coastal areas.

Planting Zones in Louisiana with Cities

USDA hardiness zones for Louisiana cities, towns and Parish. Data Source: USDA (2023)

Planting Zones in Louisiana	Temp Range (°F)	Cities
9b	25 to 30	Ama, Amelia, Arabi, Avery Island, Baldwin, Barataria, Bell City, Belle Chasse, Berwick, Bourg, Boutte, Braithwaite, Cameron, Centerville, Chalmette, Charenton, Chauvin, Creole, Cut Off, Delcambre, Des Allemands, Destrehan, Donner, Dulac, Edgard, Erath, Franklin, Galliano, Garden City, Gheens, Gibson, Grand Chenier, Gray, Gretna, Hackberry, Hahnville, Harvey, Hayes, Houma, Jeanerette, Kaplan, Kenner, Kraemer, La Place, Labadieville, Lafitte, Lake Arthur, Lake Charles, Larose, Lockport, Luling, Marrero, Mathews, Meraux, Metairie, Montegut, Morgan City, Napoleonville, New Iberia, New Orleans, New Sarpy, Norco, Paradis, Patterson, Pierre Part, Pointe A La Hache, Port Sulphur, Raceland, Reserve, Saint Bernard, Saint Rose, Schriever, Sulphur, Theriot, Thibodaux, Vacherie, Violet, Westwego
10a	30 to 35	Boothville, Buras, Empire, Golden Meadow, Grand Isle, Venice
9a	20 to 25	Abbeville, Abita Springs, Acme, Addis, Akers, Albany, Alexandria, Amite, Anacoco, Angie, Angola, Arnaudville, Atlanta, Baker, Ball, Basile, Batchelor, Baton Rouge, Belle Rose, Bentley, Bogalusa, Bordelonville, Boyce, Branch, Breaux Bridge, Brittany, Broussard, Brusly, Bunkie, Burnside, Bush, Cade, Carencro, Carville, Cecilia, Center Point, Chataignier, Cheneyville, Church Point, Clarence, Clinton, Cloutierville, Colfax, Convent, Cottonport, Covington, Crowley, Darrow, Denham Springs, Dequincy, Deridder, Deville, Donaldsonville, Dry Creek, Dry Prong, Duplessis, Dupont, Duson, Echo, Effie, Egan, Elizabeth, Elmer, Elton, Erwinville, Estherwood, Ethel, Eunice, Evangeline, Evans, Evergreen, Fenton, Ferriday, Fisher, Flatwoods, Flora, Florien, Fluker, Folsom, Fordoche, Forest Hill, Franklinton, French Settlement, Gardner, Garyville, Geismar, Georgetown, Glenmora, Glynn, Gonzales, Gorum, Gramercy, Grand Coteau, Grant, Greensburg, Greenwell Springs, Grosse Tete, Gueydan, Hamburg, Hammond, Harrisonburg, Hessmer, Hester, Hineston, Holden, Hornbeck, Husser, Independence, Innis, Iota, Iowa, Jackson, Jarreau, Jennings, Jonesville, Kinder, Krotz Springs, Kurthwood, Lacassine, Lacombe, Lafayette, Lake Charles, Lakeland, Lawtell, Lebeau, Leblanc, Lecompte, Leesville, Lena, Leonville, Lettsworth, Libuse, Livingston, Livonia, Longleaf, Longville, Loranger, Loreauville, Lottie, Lutcher, Lydia, Madisonville, Mamou, Mandeville, Mansura, Many, Maringouin, Marksville, Maurepas, Maurice, Melrose, Melville, Mermentau, Merryville, Milton, Mittie, Monterey, Montgomery, Mora, Moreauville, Morganza, Morrow, Morse, Mount Airy, Natalbany, Natchez, Natchitoches, Negreet, New Iberia, New Roads, Newllano, Norwood, Oakdale, Oberlin, Opelousas, Oscar, Otis, Paincourtville, Palmetto, Paulina, Pearl River, Perry, Pine Grove, Pine Prairie, Pineville, Pitkin, Plaquemine, Plattenville, Plaucheville, Pollock, Ponchatoula, Port Allen, Port Barre, Prairieville, Pride, Provencal, Ragley, Rayne, Reddell, Reeves, Rhinehart, Roanoke, Robeline, Robert, Rosedale, Roseland, Rosepine, Rougon, Ruby, Saint Amant, Saint Benedict, Saint Francisville, Saint Gabriel, Saint James, Saint Landry, Saint Martinville, Saint Maurice, Scott, Sieper, Simmesport, Simpson, Singer, Slagle, Slaughter, Slidell, Sorrento, Springfield, Starks, Sugartown, Sulphur, Sun, Sunset, Sunshine, Talisheek, Tangipahoa, Tickfaw, Tioga, Tunica, Turkey Creek, Ventress, Vidalia, Ville Platte, Vinton, Wakefield, Walker, Washington, Watson, Welsh, Westlake, Weyanoke, White Castle, Wildsville, Wilson, Woodworth, Youngsville, Zachary
8b	15 to 20	Aimwell, Arcadia, Archibald, Ashland, Athens, Barksdale Afb, Baskin, Bastrop, Belcher, Belmont, Benton, Bernice, Bethany, Bienville, Bonita, Bossier City, Calhoun, Calvin, Campti, Castor, Chase, Chatham, Choudrant, Clarks, Clayton, Collinston, Columbia, Converse, Cotton Valley, Coushatta, Crowville, Cullen, Delhi, Delta, Dodson, Downsville, Doyline, Dubach, Dubberly, Elm Grove, Enterprise, Epps, Eros, Fairbanks, Farmerville, Forest, Fort Necessity, Frierson, Gibsland, Gilbert, Gilliam, Gloster, Goldonna, Grambling, Grand Cane, Grayson, Greenwood, Hall Summit, Haughton, Haynesville, Heflin, Hodge, Homer, Hosston, Ida, Jamestown, Jena, Jigger, Jones, Jonesboro, Joyce, Keatchie, Keithville, Kelly, Kentwood, Kilbourne, Lake Providence, Lillie, Lisbon, Logansport, Longstreet, Mangham, Mansfield, Marion, Marthaville, Mer Rouge, Minden, Monroe, Mooringsport, Mount Hermon, Newellton, Noble, Oak Grove, Oak Ridge, Oil City, Olla, Pelican, Pioneer, Plain Dealing, Pleasant Hill, Powhatan, Princeton, Quitman, Rayville, Ringgold, Rodessa, Ruston, Saint Joseph, Saline, Sarepta, Shongaloo, Shreveport, Sibley, Sicily Island, Sikes, Simsboro, Sondheimer, Spearsville, Springhill, Start, Sterlington, Stonewall, Summerfield, Swartz, Tallulah, Taylor, Transylvania, Trout, Tullos, Urania, Vivian, Waterproof, West Monroe, Winnfield, Winnsboro, Wisner, Zwolle

Geography influence on planting zones of Louisiana?

The new USDA plant hardiness zone map for Louisiana shows a gradient from north to south, due to effect of transition from continental to maritime influences:

1. Zone 8b (north): More continental, cooler winters. Example plant: Southern Magnolia.
2. Zone 9a (central): Transitional climate. Example plant: Crape Myrtle.
3. Zone 9b (south): Increasing maritime influence. Example plant: Live Oak.
4. Zone 10a (coastal): Strong maritime effect, milder winters. Example plant: Sabal Palm.
5. Zone 10b (southernmost tip): Fully maritime, warmest winters. Example plant: Royal Poinciana.