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Minnesota Planting Zones

Minnesota covers USDA hardiness zones 3a to 5a on the 2023 map. The most common zone is 4b (36% of ZIP codes), where the coldest winter night averages -25 to -20 °F. Minneapolis is zone 5a, Saint Paul is zone 5a and Duluth is zone 4a–5a.

Zones in Minnesota

Share of the state’s ZIP codes in each zone.

3a 1% -40 to -35 °F
3b 13% -35 to -30 °F
4a 21% -30 to -25 °F
4b 36% -25 to -20 °F
5a 29% -20 to -15 °F

Major cities

Minneapolis 5a
Saint Paul 5a
Duluth 4a–5a
Saint Cloud 4b
Minneapolis (Anoka) 5a
Saint Paul (Dakota) 5a
Rochester 4b
Saint Paul (Washington) 5a
Eden Prairie 5a
Grand Rapids 4a
Maple Plain 4b
Moorhead 4a

Every city and town in Minnesota

Ada 56510 4a
Adams 55909 4b
Adrian 56110 5a
Afton 55001 5a
Aitkin 56431 4a
Akeley 56433 4a
Albany 56307 4b
Albert Lea 56007 5a
Alberta 56207 4b
Albertville 55301 4b
Alborn 55702 4a
Alden 56009 5a
Aldrich 56434 4a
Alexandria 56308 4b
Alpha 56111 5a
Altura 55910 4b
Alvarado 56710 4a
Amboy 56010 5a
Andover 55304 4b
Angle Inlet 56711 3b
Angora 55703 3b
Annandale 55302 4b
Anoka 55303 4b
Appleton 56208 4b
Arco 56113 5a
Argyle 56713 4a
Arlington 55307 4b
Ashby 56309 4b
Askov 55704 4a
Atwater 56209 4b
Audubon 56511 4a
Aurora 55705 3b
Austin 55912 4b
Avoca 56114 5a
Avon 56310 4b
Babbitt 55706 3b
Backus 56435 4a
Badger 56714 3b
Bagley 56621 3b
Balaton 56115 5a
Barnesville 56514 4a
Barnum 55707 4a
Barrett 56311 4b
Barry 56210 4b
Battle Lake 56515 4a
Baudette 56623 3b
Baxter 56425 4a
Bayport 55003 5a
Beardsley 56211 4b
Beaver Bay 55601 4a
Beaver Creek 56116 5a
Becker 55308 4b
Bejou 56516 4a
Belgrade 56312 4b
Belle Plaine 56011 4b
Bellingham 56212 4b
Beltrami 56517 4a
Belview 56214 4b
Bemidji 56601+ 3b
Bena 56626 3b
Benedict 56436 4a
Benson 56215 4b
Bertha 56437 4a
Bethel 55005 4b
Big Falls 56627 3b
Big Lake 55309 4b
Bigelow 56117 4b
Bigfork 56628 3b
Bingham Lake 56118 5a
Birchdale 56629 3b
Bird Island 55310 4b
Biwabik 55708 3b
Blackduck 56630 3b
Blomkest 56216 4b
Blooming Prairie 55917 5a
Blue Earth 56013 5a
Bluffton 56518 4a
Bock 56313 4a
Borup 56519 4a
Bovey 55709 3b
Bowlus 56314 4a
Bowstring 56631 3b
Boyd 56218 4b
Braham 55006 4b
Brainerd 56401 4a
Brandon 56315 4b
Breckenridge 56520 4a
Brewster 56119 5a
Bricelyn 56014 5a
Brimson 55602 3b
Britt 55710 3b
Brook Park 55007 4a
Brooks 56715 3b
Brookston 55711 4a
Brooten 56316 4b
Browerville 56438 4a
Browns Valley 56219 4b
Brownsdale 55918 4b
Brownsville 55919 5a
Brownton 55312 4b
Bruno 55712 4a
Buckman 56317 4a
Buffalo 55313 4b
Buffalo Lake 55314 4b
Buhl 55713 3b
Burnsville 55306+ 5a
Burtrum 56318 4b
Butterfield 56120 5a
Byron 55920 4b
Caledonia 55921 5a
Callaway 56521 4a
Calumet 55716 4a
Cambridge 55008 4b
Campbell 56522 4a
Canby 56220 4b
Cannon Falls 55009 4b
Canton 55922 4b
Canyon 55717 4a
Carlos 56319 4a
Carlton 55718 4a
Carver 55315 4b
Cass Lake 56633 3b
Castle Rock 55010 4b
Cedar 55011 4b
Center City 55012 4a
Ceylon 56121 5a
Champlin 55316 5a
Chandler 56122 5a
Chanhassen 55317 5a
Chaska 55318 4b
Chatfield 55923 4b
Chisago City 55013 4b
Chisholm 55719 3b
Chokio 56221 4b
Circle Pines 55014 5a
Clara City 56222 4b
Claremont 55924 5a
Clarissa 56440 4a
Clarkfield 56223 4b
Clarks Grove 56016 5a
Clear Lake 55319 4b
Clearbrook 56634 3b
Clearwater 55320 4b
Clements 56224 5a
Cleveland 56017 5a
Climax 56523 4a
Clinton 56225 4b
Clitherall 56524 4a
Clontarf 56226 4b
Cloquet 55720 4a
Cohasset 55721 4a
Cokato 55321 4b
Cold Spring 56320 4b
Coleraine 55722 4a
Collegeville 56321 4b
Cologne 55322 4b
Comfrey 56019 5a
Comstock 56525 4a
Cook 55723 3b
Correll 56227 4b
Cosmos 56228 4b
Cottage Grove 55016 5a
Cotton 55724 3b
Cottonwood 56229 5a
Courtland 56021 5a
Crane Lake 55725 3b
Cromwell 55726 4a
Crookston 56716 4a
Crosby 56441 4a
Crosslake 56442 4a
Crystal Bay 55323 4b
Currie 56123 5a
Cushing 56443 4a
Cyrus 56323 4b
Dakota 55925 5a
Dalbo 55017 4b
Dalton 56324 4a
Danube 56230 4b
Danvers 56231 4b
Darwin 55324 4b
Dassel 55325 4b
Dawson 56232 4b
Dayton 55327 4b
Deer Creek 56527 4a
Deer River 56636 3b
Deerwood 56444 4a
Delano 55328 4b
Delavan 56023 5a
Dennison 55018 4b
Dent 56528 4a
Detroit Lakes 56501+ 4a
Dexter 55926 4b
Dilworth 56529 4a
Dodge Center 55927 4b
Donaldson 56720 4a
Donnelly 56235 4b
Dover 55929 4b
Duluth 55802+ 4a–5a
Dumont 56236 4b
Dundas 55019 4b
Dunnell 56127 5a
Eagle Bend 56446 4a
Eagle Lake 56024 5a
East Grand Forks 56721 4a
Easton 56025 5a
Echo 56237 4b
Eden Prairie 55344+ 5a
Eden Valley 55329 4b
Edgerton 56128 4b
Effie 56639 3b
Eitzen 55931 5a
Elbow Lake 56531 4b
Elgin 55932 4b
Elizabeth 56533 4a
Elk River 55330 4b
Elko New Market 55020+ 4b
Elkton 55933 4b
Ellendale 56026 4b
Ellsworth 56129 5a
Elmore 56027 5a
Ely 55731 3b
Elysian 56028 5a
Embarrass 55732 3a
Emily 56447 4a
Emmons 56029 5a
Erhard 56534 4a
Erskine 56535 3b
Esko 55733 4b
Essig 56030 5a
Euclid 56722 4a
Evansville 56326 4b
Eveleth 55734 3b
Excelsior 55331 5a
Eyota 55934 4b
Fairfax 55332 4b
Fairmont 56031 5a
Faribault 55021 4b
Farmington 55024 5a
Farwell 56327 4b
Federal Dam 56641 3b
Felton 56536 4a
Fergus Falls 56537+ 4a
Fertile 56540 4a
Fifty Lakes 56448 4a
Finland 55603 4a
Finlayson 55735 4a
Fisher 56723 4a
Flensburg 56328 4a
Flom 56541 4a
Floodwood 55736 4a
Foley 56329 4a
Forbes 55738 3b
Forest Lake 55025 4b
Foreston 56330 4a
Fort Ripley 56449 4a
Fosston 56542 3b
Fountain 55935 4b
Foxhome 56543 4a
Franklin 55333 4b
Frazee 56544 4a
Freeborn 56032 5a
Freeport 56331 4b
Frontenac 55026 4b
Frost 56033 5a
Fulda 56131 5a
Garden City 56034 5a
Garfield 56332 4b
Garrison 56450 4a
Garvin 56132 5a
Gary 56545 4a
Gatzke 56724 3b
Gaylord 55334 4b
Geneva 56035 4b
Georgetown 56546 4a
Ghent 56239 5a
Gibbon 55335 4b
Gilbert 55741 3b
Gilman 56333 4a
Glencoe 55336 4b
Glenville 56036 5a
Glenwood 56334 4b
Glyndon 56547 4a
Gonvick 56644 3b
Good Thunder 56037 5a
Goodhue 55027 4b
Goodland 55742 4a
Goodridge 56725 3b
Graceville 56240 4b
Granada 56039 5a
Grand Marais 55604 3b
Grand Meadow 55936 4b
Grand Portage 55605 4b
Grand Rapids 55730+ 4a
Granite Falls 56241 4b
Grasston 55030 4a
Green Isle 55338 4b
Greenbush 56726 3b
Greenwald 56335 4b
Grey Eagle 56336 4b
Grove City 56243 4b
Grygla 56727 3b
Gully 56646 3b
Hackensack 56452 4a
Hallock 56728 3b
Halma 56729 3b
Halstad 56548 4a
Hamburg 55339 4b
Hamel 55340 4b
Hampton 55031 4b
Hancock 56244 4b
Hanley Falls 56245 4b
Hanover 55341 4b
Hanska 56041 5a
Hardwick 56134 4b
Harmony 55939 4b
Harris 55032 4b
Hartland 56042 5a
Hastings 55033 5a
Hawley 56549 4a
Hayfield 55940 5a
Hayward 56043 5a
Hector 55342 4b
Henderson 56044 4b
Hendricks 56136 4b
Hendrum 56550 4a
Henning 56551 4a
Henriette 55036 4a
Herman 56248 4b
Heron Lake 56137 5a
Hewitt 56453 4a
Hibbing 55746 3b
Hill City 55748 4a
Hillman 56338 4a
Hills 56138 5a
Hinckley 55037 4a
Hines 56647 3b
Hitterdal 56552 4a
Hoffman 56339 4b
Hokah 55941 5a
Holdingford 56340 4b
Holland 56139 4b
Hollandale 56045 4b
Holloway 56249 4b
Holmes City 56341 4b
Holyoke 55749 4a
Homer 55942 5a
Hope 56046 4b
Hopkins 55305+ 5a
Houston 55943 5a
Hovland 55606 4a
Howard Lake 55349 4b
Howard Lake (Hennepin) 55575 4b
Hoyt Lakes 55750 3b
Hugo 55038 4b
Humboldt 56731 3b
Hutchinson 55350 4b
Ihlen 56140 4b
International Falls 56649 3b
Inver Grove Heights 55076+ 5a
Iona 56141 5a
Iron 55751 3b
Ironton 56455 4a
Isabella 55607 3b
Isanti 55040 4b
Isle 56342 4a
Ivanhoe 56142 4b
Jackson 56143 5a
Jacobson 55752 4a
Janesville 56048 5a
Jasper 56144 4b
Jeffers 56145 5a
Jenkins 56456 4a
Jordan 55352 4b
Kabetogama 56669 3b
Kanaranzi 56146 5a
Kandiyohi 56251 4b
Karlstad 56732 3b
Kasota 56050 5a
Kasson 55944 4b
Keewatin 55753 4a
Kelliher 56650 3b
Kellogg 55945 4b
Kennedy 56733 4a
Kenneth 56147 5a
Kensington 56343 4b
Kent 56553 4a
Kenyon 55946 4b
Kerkhoven 56252 4b
Kerrick 55756 4a
Kettle River 55757 4a
Kiester 56051 5a
Kilkenny 56052 4b
Kimball 55353 4b
Kinney 55758 3b
Knife River 55609 4b
La Crescent 55947 5a
La Salle 56056 5a
Lafayette 56054 4b
Lake Benton 56149 4b
Lake Bronson 56734 3b
Lake City 55041 4b
Lake Crystal 56055 5a
Lake Elmo 55042 5a
Lake George 56458 3b
Lake Hubert 56459 4a
Lake Lillian 56253 4b
Lake Park 56554 4a
Lake Wilson 56151 5a
Lakefield 56150 5a
Lakeland 55043 5a
Lakeville 55044 4b
Lamberton 56152 5a
Lancaster 56735 3b
Lanesboro 55949 4b
Lansing 55950 4b
Laporte 56461 3b
Lastrup 56344 4a
Le Center 56057 4b
Le Roy 55951 4b
Le Sueur 56058 4b
Lengby 56651 3b
Leonard 56652 3b
Leota 56153 4b
Lester Prairie 55354 4b
Lewiston 55952 4b
Lewisville 56060 5a
Lindstrom 55045 4b
Lismore 56155 5a
Litchfield 55355 4b
Little Falls 56345 4a
Littlefork 56653 3b
Loman 56654 3a
Long Lake 55356 4b
Long Prairie 56347 4a
Longville 56655 4a
Lonsdale 55046 4b
Loretto 55357+ 4b
Lowry 56349 4b
Lucan 56255 5a
Lutsen 55612 3b
Luverne 56156 5a
Lyle 55953 5a
Lynd 56157 5a
Mabel 55954 4b
Madelia 56062 5a
Madison 56256 4b
Madison Lake 56063 5a
Magnolia 56158 5a
Mahnomen 56557 4a
Makinen 55763 3b
Mankato 56001+ 5a
Mankato (Nicollet) 56003 5a
Mantorville 55955 4b
Maple Grove 55311 5a
Maple Lake 55358 4b
Maple Plain 55359+ 4b
Maple Plain (Wright) 55592 4b
Mapleton 56065 5a
Marble 55764 4a
Marcell 56657 3b
Margie 56658 3b
Marietta 56257 4b
Marine On Saint Croix 55047 4b
Marshall 56258 5a
Max 56659 3b
Mayer 55360 4b
Maynard 56260 4b
Mazeppa 55956 4b
Mc Grath 56350 4a
Mcgregor 55760 4a
Mcintosh 56556 3b
Meadowlands 55765 3b
Medford 55049 4b
Melrose 56352 4b
Melrude 55766 3b
Menahga 56464 4a
Mendota 55150 5a
Mentor 56736 4a
Merrifield 56465 4a
Middle River 56737 3b
Milaca 56353 4a
Milan 56262 4b
Millville 55957 4b
Milroy 56263 5a
Miltona 56354 4a
Minneapolis 55401+ 5a
Minneapolis (Anoka) 55421+ 5a
Minneota 56264 5a
Minnesota City 55959 4b
Minnesota Lake 56068 5a
Minnetonka 55345 5a
Minnetonka Beach 55361 5a
Mizpah 56660 3b
Montevideo 56265 4b
Montgomery 56069 4b
Monticello 55362 4b
Montrose 55363 4b
Moorhead 56560+ 4a
Moose Lake 55767 4a
Mora 55051 4a
Morgan 56266 5a
Morris 56267 4b
Morristown 55052 4b
Morton 56270 4b
Motley 56466 4a
Mound 55364 4b
Mountain Iron 55768 3b
Mountain Lake 56159 5a
Murdock 56271 4b
Nashua 56565 4a
Nashwauk 55769 3b
Naytahwaush 56566 3b
Nelson 56355 4a
Nerstrand 55053 4b
Nett Lake 55772 3b
Nevis 56467 3b
New Auburn 55366 4b
New Germany 55367 4b
New London 56273 4b
New Munich 56356 4a
New Prague 56071 4b
New Richland 56072 4b
New Ulm 56073 5a
New York Mills 56567 4a
Newfolden 56738 3b
Newport 55055 5a
Nicollet 56074 5a
Nielsville 56568 4a
Nisswa 56468 4a
Norcross 56274 4b
North Branch 55056 4b
Northfield 55057 4b
Northome 56661 3b
Northrop 56075 5a
Norwood 55554 4b
Norwood Young America 55368 4b
Oak Park 56357 4b
Odessa 56276 4b
Odin 56160 5a
Ogema 56569 4a
Ogilvie 56358 4a
Okabena 56161 5a
Oklee 56742 3b
Olivia 56277 4b
Onamia 56359 4a
Ormsby 56162 5a
Oronoco 55960 4b
Orr 55771 3b
Ortonville 56278 4b
Osage 56570 3b
Osakis 56360 4b
Oslo 56744 4a
Osseo 55369+ 5a
Ostrander 55961 4b
Ottertail 56571 4a
Outing 56662 4a
Owatonna 55060 4b
Palisade 56469 4a
Park Rapids 56470 3b
Parkers Prairie 56361 4a
Paynesville 56362 4b
Pease 56363 4b
Pelican Rapids 56572 4a
Pemberton 56078 5a
Pengilly 55775 4a
Pennington 56663 3b
Pennock 56279 4b
Pequot Lakes 56472 4a
Perham 56573 4a
Perley 56574 4a
Peterson 55962 4b
Pierz 56364 4a
Pillager 56473 4a
Pine City 55063 4a
Pine Island 55963 4b
Pine River 56474 4a
Pipestone 56164 4b
Plainview 55964 4b
Plato 55370 4b
Plummer 56748 3b
Ponemah 56666 3b
Ponsford 56575 3b
Porter 56280 5a
Preston 55965 4b
Princeton 55371 4b
Prinsburg 56281 4b
Prior Lake 55372 4b
Puposky 56667 3b
Racine 55967 4b
Randall 56475 4a
Randolph 55065 4b
Ranier 56668 3a
Raymond 56282 4b
Reading 56165 5a
Reads Landing 55968 4b
Red Lake Falls 56750 3b
Red Wing 55066 4b
Redby 56670 3b
Redlake 56671 3b
Redwood Falls 56283 5a
Remer 56672 3b
Renville 56284 4b
Revere 56166 5a
Rice 56367 4a
Richmond 56368 4b
Richville 56576 4a
Rochert 56578 4a
Rochester 55901+ 4b
Rockford 55373 4b
Rockford (Hennepin) 55572 4b
Rockville 56369 4b
Rogers 55374 4b
Rollingstone 55969 4b
Roosevelt 56673 3b
Roscoe 56371 4b
Rose Creek 55970 4b
Roseau 56751 3b
Rosemount 55068 5a
Rothsay 56579 4a
Round Lake 56167 5a
Royalton 56373 4a
Rush City 55069 4b
Rushford 55971 4b
Rushmore 56168 5a
Russell 56169 5a
Ruthton 56170 4b
Sabin 56580 4a
Sacred Heart 56285 4b
Saginaw 55779 4a
Saint Bonifacius 55375 4b
Saint Charles 55972 4b
Saint Clair 56080 5a
Saint Cloud 56301+ 4b
Saint Francis 55070 4b
Saint Hilaire 56754 3b
Saint James 56081 5a
Saint Joseph 56374 4b
Saint Martin 56376 4b
Saint Michael 55376 4b
Saint Paul 55101+ 5a
Saint Paul (Dakota) 55118+ 5a
Saint Paul (Hennepin) 55111 5a
Saint Paul (Washington) 55115+ 5a
Saint Paul Park 55071 5a
Saint Peter 56082 4b
Saint Stephen 56375 4a
Saint Vincent 56755 3b
Salol 56756 3b
Sanborn 56083 5a
Sandstone 55072 4a
Santiago 55377 4b
Sargeant 55973 5a
Sartell 56377 4b
Sauk Centre 56378 4b
Sauk Rapids 56379 4b
Savage 55378 5a
Sawyer 55780 4a
Scandia 55073 4b
Schroeder 55613 4b
Seaforth 56287 4b
Searles 56084 5a
Sebeka 56477 4a
Shafer 55074 4b
Shakopee 55379 5a
Shelly 56581 4a
Sherburn 56171 5a
Shevlin 56676 3b
Side Lake 55781 3b
Silver Bay 55614 4a
Silver Lake 55381 4b
Slayton 56172 5a
Sleepy Eye 56085 5a
Solway 56678 3b
Soudan 55782 3a
South Haven 55382 4b
South International Falls 56679 3b
South Saint Paul 55075 5a
Spicer 56288 4b
Spring Grove 55974 5a
Spring Lake 56680 3b
Spring Park 55384 4b
Spring Valley 55975 4b
Springfield 56087 5a
Squaw Lake 56681 3b
Stacy 55078+ 4b
Stanchfield 55080 4b
Staples 56479 4a
Starbuck 56381 4b
Steen 56173 5a
Stephen 56757 4a
Stewart 55385 4b
Stewartville 55976 4b
Stillwater 55082+ 4b–5a
Stockton 55988 5a
Storden 56174 5a
Strandquist 56758 3b
Strathcona 56759 3b
Sturgeon Lake 55783 4a
Sunburg 56289 4b
Swan River 55784 4a
Swanville 56382 4a
Swatara 55785 4a
Taconite 55786 4a
Talmoon 56637 3b
Tamarack 55787 4a
Taopi 55977 4b
Taunton 56291 5a
Taylors Falls 55084 4a
Tenstrike 56683 3b
Thief River Falls 56701 4a
Tintah 56583 4a
Tofte 55615 3b
Tower 55790 3a
Tracy 56175 5a
Trail 56684 3b
Trimont 56176 5a
Truman 56088 5a
Twig 55791 4a
Twin Lakes 56089 5a
Twin Valley 56584 4a
Two Harbors 55616 3b
Tyler 56178 4b
Ulen 56585 4a
Underwood 56586 4a
Upsala 56384 4b
Utica 55979 4b
Vergas 56587 4a
Vermillion 55085 5a
Verndale 56481 4a
Vernon Center 56090 5a
Vesta 56292 4b
Victoria 55386 4b
Viking 56760 3b
Villard 56385 4b
Vining 56588 4a
Virginia 55777+ 3b
Wabasha 55981 4b
Wabasso 56293 4b
Waconia 55387 4b
Wadena 56482 4a
Wahkon 56386 4a
Waite Park 56387 4b
Waite Park (Morrison) 56388 4b
Waldorf 56091 5a
Walker 56484 4a
Walnut Grove 56180 5a
Waltham 55982 4b
Wanamingo 55983 4b
Wanda 56294 4b
Wannaska 56761 3b
Warba 55793 4a
Warren 56762 4a
Warroad 56763 3b
Warsaw 55087 4b
Waseca 56093 4b
Waskish 56685 3b
Watertown 55388 4b
Waterville 56096 4b
Watkins 55389 4b
Watson 56295 4b
Waubun 56589 4a
Waverly 55390 4b
Wayzata 55391 5a
Webster 55088 4b
Welch 55089 4b
Welcome 56181 5a
Wells 56097 4b
Wendell 56590 4a
West Concord 55985 4b
West Union 56389 4b
Westbrook 56183 5a
Wheaton 56296 4b
White Earth 56591 4a
Williams 56686 3b
Willmar 56201 4b
Willow River 55795 4a
Wilmont 56185 5a
Wilton 56687 3b
Windom 56101 5a
Winger 56592 3b
Winnebago 56098 5a
Winona 55987 5a
Winsted 55395 4b
Winthrop 55396 4b
Winton 55796 3b
Wirt 56688 3b
Wolf Lake 56593 3b
Wolverton 56594 4a
Wood Lake 56297 4b
Woodstock 56186 4b
Worthington 56187 5a
Wrenshall 55797 4a
Wright 55798 4a
Wykoff 55990 4b
Wyoming 55092 4b
Young America 55397 4b
Young America (Hennepin) 55573 4b
Zimmerman 55398 4b
Zumbro Falls 55991 4b
Zumbrota 55992 4b

Other states

Alabama Alaska Arizona Arkansas California Colorado Connecticut Delaware District of Columbia Florida Georgia Hawaii Idaho Illinois Indiana Iowa Kansas Kentucky Louisiana Maine Maryland Massachusetts Michigan Mississippi Missouri Montana Nebraska Nevada New Hampshire New Jersey New Mexico New York North Carolina North Dakota Ohio Oklahoma Oregon Pennsylvania Puerto Rico Rhode Island South Carolina South Dakota Tennessee Texas Utah Vermont Virginia Washington West Virginia Wisconsin Wyoming

Zones: 2023 USDA Plant Hardiness Zone Map ZIP code data, USDA Agricultural Research Service and the PRISM Climate Group, Oregon State University (official map). Place names: GeoNames (CC BY 4.0). Each ZIP code gets one zone, but a ZIP code can cross a zone line, and hills, valleys and towns can be warmer or colder than the zone shown.

About the Hardiness Zone Map

The Hardiness Zone Map finds your USDA plant hardiness zone, also called your planting or growing zone, from your ZIP code. Zones are based on the average coldest winter night of the year: each zone is 10 °F wide and split into a and b halves of 5 °F, from zone 1a in Alaska to 13b in Puerto Rico. Plant labels and seed packets give the coldest zone a plant can survive, so knowing your zone tells you which perennials, shrubs and trees can stay outside all winter. Zones come from the official 2023 USDA map ZIP code data for all 50 states, Washington DC and Puerto Rico.

How to use it

1 Enter your 5-digit ZIP code and press Find my zone.
2 Read your zone and the average coldest winter temperature it stands for.
3 Open your state to see its zones and the zone of every city.
4 Choose plants rated for your zone number or a colder (lower) one.

Frequently asked questions

What growing zone is Minnesota?

Minnesota spans zones 3a–5a. Zone 4b is the most common, covering 36% of the state's ZIP codes. Enter your ZIP code above for your exact zone.

What planting zone is Minneapolis, MN?

Minneapolis is in USDA zone 5a. Its average coldest winter night is -20 to -15 °F.

What planting zone is Saint Paul, MN?

Saint Paul is in USDA zone 5a. Its average coldest winter night is -20 to -15 °F.

What planting zone is Duluth, MN?

Duluth is in USDA zone 4a–5a, depending on the ZIP code. Its average coldest winter night is -30 to -15 °F.

What is the coldest zone in Minnesota?

The coldest part of Minnesota is zone 3a, with winter lows of -40 to -35 °F. The warmest is zone 5a, at -20 to -15 °F.

How are planting zones worked out?

Each zone is a 10 °F band of the average coldest winter night over 1991–2020, split into a and b halves of 5 °F. The map does not show summer heat, rainfall or frost dates, so check local advice before planting.

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