Press Ctrl + D to bookmark Hardiness Zone Map.
Open your browser menu (⋮ or the share icon) and tap Bookmark or Add to Home Screen.
Feedback on Hardiness Zone Map
Maryland Planting Zones
Maryland covers USDA hardiness zones 6a to 8a on the 2023 map. The most common zone is 7b (61% of ZIP codes), where the coldest winter night averages 5 to 10 °F. Baltimore is zone 7b–8a, Silver Spring is zone 7b and Bethesda is zone 7b.
Zones in Maryland
Share of the state’s ZIP codes in each zone.
Major cities
- Baltimore 7b–8a
- Silver Spring 7b
- Bethesda 7b
- Gaithersburg 7b
- Annapolis 7b–8a
- Rockville 7b
- Bowie 7a–7b
- Hyattsville 7b
- Frederick 7a–7b
- Hagerstown 7a–7b
- Capitol Heights 7b
- Cumberland 7a
Every city and town in Maryland
- Abell 20606 8a
- Aberdeen 21001 7b
- Aberdeen Proving Ground 21005 7b
- Abingdon 21009 7b
- Accident 21520 6a
- Accokeek 20607 7b
- Adamstown 21710 7b
- Allen 21810 7b
- Andrews Air Force Base 20762 7b
- Annapolis 21401+ 7b–8a
- Annapolis Junction 20701 7b
- Aquasco 20608 7b
- Arnold 21012 8a
- Ashton 20861 7b
- Avenue 20609 8a
- Baldwin 21013 7b
- Baltimore 21201+ 7b–8a
- Baltimore (Anne Arundel) 21240 7b
- Baltimore (Baltimore) 21250 7b
- Barclay 21607 7b
- Barnesville 20838 7a
- Barstow 20610 7b
- Barton 21521 6b
- Beallsville 20839 7b
- Bel Air 21014+ 7b
- Bel Alton 20611 7b
- Belcamp 21017 7b
- Beltsville 20704+ 7b
- Benedict 20612 7b
- Benson 21018 7b
- Berlin 21811 7b
- Bethesda 20810+ 7b
- Bethlehem 21609 7b
- Betterton 21610 7b
- Big Pool 21711 7a
- Bishopville 21813 7b
- Bivalve 21814 8a
- Bladensburg 20710 7b
- Bloomington 21523 6b
- Boonsboro 21713 7a
- Boring 21020 7a
- Bowie 20715+ 7a–7b
- Boyds 20841 7b
- Bozman 21612 8a
- Braddock Heights 21714 7b
- Brandywine 20613 7b
- Brentwood 20722 7b
- Brinklow 20862 7b
- Brookeville 20833 7b
- Brooklandville 21022 7b
- Brooklyn 21225 8a
- Broomes Island 20615 8a
- Brownsville 21715 7a
- Brunswick 21716 7a
- Bryans Road 20616 7b
- Bryantown 20617 7b
- Buckeystown 21717 7b
- Burkittsville 21718 7a
- Burtonsville 20866 7b
- Bushwood 20618 8a
- Butler 21023 7b
- Cabin John 20818 7b
- California 20619 7b
- Callaway 20620 8a
- Cambridge 21613 8a
- Capitol Heights 20731+ 7b
- Cascade 21719 7a
- Catonsville 21228 7b
- Cavetown 21720 7a
- Cecilton 21913 7b
- Centreville 21617 7b
- Chaptico 20621 7b
- Charlestown 21914 7b
- Charlotte Hall 20622 7b
- Chase 21027 8a
- Cheltenham 20623 7b
- Chesapeake Beach 20732 8a
- Chesapeake City 21915 7b
- Chester 21619 8a
- Chestertown 21620 7b
- Chestertown (Queen Anne's) 21690 7b
- Chevy Chase 20815+ 7b
- Chewsville 21721 7a
- Childs 21916 7a
- Church Creek 21622 8a
- Church Hill 21623 7b
- Churchton 20733 8a
- Churchville 21028 7a
- Claiborne 21624 8a
- Clarksburg 20871 7a
- Clarksville 21029 7b
- Clear Spring 21722 7a
- Clements 20624 7b
- Clinton 20735 7b
- Cobb Island 20625 8a
- Cockeysville 21030 7b
- College Park 20740+ 7b
- Colora 21917 7a
- Coltons Point 20626 8a
- Columbia 21044+ 7b
- Compton 20627 7b
- Conowingo 21918 7a
- Cooksville 21723 7a
- Cordova 21625 7b
- Corriganville 21524 7a
- Crapo 21626 8a
- Crisfield 21817 8a
- Crocheron 21627 8a
- Crofton 21114 7b
- Crownsville 21032 7b
- Crumpton 21628 7b
- Cumberland 21501+ 7a
- Curtis Bay 21226 8a
- Damascus 20872 7b
- Dameron 20628 8a
- Darlington 21034 7a
- Davidsonville 21035 7b
- Dayton 21036 7b
- Deal Island 21821 8a
- Deale 20751 8a
- Delmar 21875 7b
- Denton 21629 7b
- Derwood 20855 7b
- Dhs 20588 7b
- Dickerson 20842 7b
- District Heights 20747+ 7b
- Dowell 20629 8a
- Drayden 20630 8a
- Dundalk 21222 8a
- Dunkirk 20754 7b
- Earleville 21919 7b
- East New Market 21631 7b
- Easton 21601 8a
- Eckhart Mines 21528 6b
- Eden 21822 7b
- Edgewater 21037 8a
- Edgewood 21040 7b
- Elk Mills 21920 7a
- Elkridge 21075 7b
- Elkton 21921+ 7b
- Ellerslie 21529 7a
- Ellicott City 21041+ 7b
- Emmitsburg 21727 7a
- Essex 21221 8a
- Ewell 21824 8a
- Fairplay 21733 7a
- Fallston 21047 7b
- Faulkner 20632 7b
- Federalsburg 21632 7b
- Finksburg 21048 7a
- Fishing Creek 21634 8a
- Flintstone 21530 7a
- Forest Hill 21050 7b
- Fork 21051 7b
- Fort George G Meade 20755 7b
- Fort Howard 21052 8a
- Fort Washington 20744+ 7b–8a
- Frederick 21701+ 7a–7b
- Freeland 21053 7a
- Friendship 20758 7b
- Friendsville 21531 6a
- Frostburg 21532 6a
- Fruitland 21826 7b
- Fulton 20759 7b
- Funkstown 21734 7a
- Gaithersburg 20877+ 7b
- Galena 21635 7b
- Gambrills 21054 7b
- Garrett Park 20896 7b
- Georgetown 21930 7b
- Germantown 20874+ 7b
- Gibson Island 21056 8a
- Girdletree 21829 7b
- Glen Arm 21057 7b
- Glen Burnie 21060+ 7b–8a
- Glen Echo 20812 7b
- Glenelg 21737 7b
- Glenn Dale 20769 7b
- Glenwood 21738 7b
- Glyndon 21071 7a
- Goldsboro 21636 7b
- Grantsville 21536 6a
- Grasonville 21638 8a
- Great Mills 20634 8a
- Greenbelt 20768+ 7b
- Greensboro 21639 7b
- Gunpowder 21010 8a
- Gwynn Oak 21207 7b
- Hagerstown 21740+ 7a–7b
- Halethorpe 21227 7b
- Hampstead 21074 7a
- Hancock 21750 7a
- Hanover 21076 7b
- Harmans 21077 7b
- Harwood 20776 7b
- Havre De Grace 21078 7b
- Hebron 21830 7b
- Helen 20635 7b
- Henderson 21640 7b
- Highland 20777 7b
- Hillsboro 21641 7b
- Hollywood 20636 7b
- Hughesville 20637 7b
- Hunt Valley 21031+ 7b
- Huntingtown 20639 7b
- Hurlock 21643 7b
- Hyattsville 20781+ 7b
- Hydes 21082 7b
- Ijamsville 21754 7a
- Indian Head 20640 7b
- Ingleside 21644 7b
- Ironsides 20643 7b
- Issue 20645 7b
- Jarrettsville 21084 7a
- Jefferson 21755 7b
- Jessup 20794 7b
- Joppa 21085 7b
- Keedysville 21756 7a
- Kennedyville 21645 7b
- Kensington 20891+ 7b
- Keymar 21757 7a
- Kingsville 21087 7b
- Kitzmiller 21538 6a
- Knoxville 21758 7a
- La Plata 20646 7b
- Ladiesburg 21759 7a
- Lanham 20703+ 7b
- Laurel 20707+ 7b
- Laurel (Anne Arundel) 20724 7b
- Laurel (Howard) 20723 7b
- Leonardtown 20650 7b
- Lexington Park 20653 8a
- Libertytown 21762 7a
- Lineboro 21088 7a
- Linkwood 21835 7b
- Linthicum Heights 21090 7b
- Lisbon 21765 7b
- Little Orleans 21766 7a
- Lonaconing 21539 6a
- Long Green 21092 7b
- Lothian 20711 7b
- Loveville 20656 7b
- Luke 21540 7a
- Lusby 20657 8a
- Lutherville Timonium 21093+ 7b
- Madison 21648 8a
- Manchester 21102 7a
- Manokin 21836 7b
- Marbury 20658 7b
- Mardela Springs 21837 7b
- Marion Station 21838 8a
- Marriottsville 21104 7b
- Marydel 21649 7b
- Maryland Line 21105 7a
- Massey 21650 7b
- Maugansville 21767 7a
- Mayo 21106 8a
- Mc Henry 21541 6a
- Mcdaniel 21647 8a
- Mechanicsville 20659 7b
- Middle River 21220 8a
- Middletown 21769 7a
- Midland 21542 6b
- Midlothian 21543 6b
- Millersville 21108 7b
- Millington 21651 7b
- Monkton 21111 7a
- Monrovia 21770 7a
- Montgomery Village 20886 7b
- Morganza 20660 7b
- Mount Airy 21771 7a
- Mount Rainier 20712 7b
- Mount Savage 21545 6b
- Mount Victoria 20661 7b
- Myersville 21773 7a
- Nanjemoy 20662 7b
- Nanticoke 21840 8a
- Neavitt 21652 8a
- New Market 21774 7a
- New Midway 21775 7a
- New Windsor 21776 7a
- Newark 21841 7b
- Newburg 20664 7b
- Newcomb 21653 8a
- North Beach 20714 8a
- North East 21901 7b
- Nottingham 21236 7b
- Oakland 21550 6a
- Ocean City 21842+ 8a
- Odenton 21113 7b
- Oldtown 21555 7a
- Olney 20830+ 7b
- Owings 20736 7b
- Owings Mills 21117 7a
- Oxford 21654 8a
- Oxon Hill 20745+ 7b–8a
- Park Hall 20667 8a
- Parkton 21120 7a
- Parkville 21234 7b
- Parsonsburg 21849 7b
- Pasadena 21122+ 8a
- Patuxent River 20670 8a
- Perry Hall 21128 7b
- Perry Point 21902 7b
- Perryman 21130 7b
- Perryville 21903 7b
- Phoenix 21131 7b
- Pikesville 21208+ 7b
- Piney Point 20674 8a
- Pinto 21556 7a
- Pittsville 21850 7b
- Pocomoke City 21851 7b
- Point Of Rocks 21777 7a
- Pomfret 20675 7b
- Poolesville 20837 7b
- Port Deposit 21904 7a
- Port Republic 20676 7b
- Port Tobacco 20677 7b
- Potomac 20854+ 7b
- Powellville 21852 7b
- Preston 21655 7b
- Price 21656 7b
- Prince Frederick 20678 7b
- Princess Anne 21853 7b
- Pylesville 21132 7a
- Quantico 21856 7b
- Queen Anne 21657 7b
- Queenstown 21658 8a
- Randallstown 21133 7a
- Rawlings 21557 7a
- Rehobeth 21857 7b
- Reisterstown 21136 7a
- Rhodesdale 21659 7b
- Riderwood 21139 7b
- Ridge 20680 8a
- Ridgely 21660 7b
- Rising Sun 21911 7a
- Riva 21140 7b
- Riverdale 20737+ 7b
- Rock Hall 21661 8a
- Rock Point 20682 8a
- Rockville 20847+ 7b
- Rocky Ridge 21778 7a
- Rohrersville 21779 7a
- Rosedale 21237 8a
- Royal Oak 21662 8a
- Sabillasville 21780 7a
- Saint Inigoes 20684 8a
- Saint James 21781 7a
- Saint Leonard 20685 8a
- Saint Marys City 20686 8a
- Saint Michaels 21663 8a
- Salisbury 21801+ 7b
- Sandy Spring 20860 7b
- Savage 20763 7b
- Scotland 20687 8a
- Secretary 21664 7b
- Severn 21144 7b
- Severna Park 21146 8a
- Shady Side 20764 8a
- Sharpsburg 21782 7a
- Sharptown 21861 7b
- Sherwood 21665 8a
- Showell 21862 7b
- Silver Spring 20901+ 7b
- Simpsonville 21150 7b
- Smithsburg 21783 7a
- Snow Hill 21863 7b
- Solomons 20688 8a
- Southern Md Facility 20697+ 7b
- Sparks Glencoe 21152 7a
- Sparrows Point 21219 8a
- Spencerville 20868 7b
- Spring Gap 21560 7a
- Stevenson 21153 7b
- Stevensville 21666 8a
- Still Pond 21667 7b
- Stockton 21864 8a
- Street 21154 7a
- Suburb Maryland Fac 20897 7b
- Sudlersville 21668 7b
- Suitland 20746+ 7b
- Sunderland 20689 7b
- Swanton 21561 6a
- Sykesville 21784 7a
- Takoma Park 20912 7b
- Takoma Park (Prince George's) 20913 7b
- Tall Timbers 20690 8a
- Taneytown 21787 7a
- Taylors Island 21669 8a
- Temple Hills 20748+ 7b
- Templeville 21670 7b
- Thurmont 21788 7a
- Tilghman 21671 8a
- Toddville 21672 8a
- Towson 21204+ 7b
- Tracys Landing 20779 8a
- Trappe 21673 8a
- Tuscarora 21790 7a
- Tyaskin 21865 7b
- Tylerton 21866 8a
- Union Bridge 21791 7a
- Unionville 21792 7b
- Upper Fairmount 21867 8a
- Upper Falls 21156 7b
- Upper Marlboro 20772+ 7b
- Upperco 21155 7a
- Valley Lee 20692 8a
- Vienna 21869 7b
- Waldorf 20601+ 7b
- Walkersville 21793 7a
- Warwick 21912 7b
- Washington Grove 20880 7b
- Welcome 20693 7b
- West Friendship 21794 7b
- West River 20778 8a
- Westernport 21562 6b
- Westminster 21157+ 7a
- Westover 21871+ 7b
- Whaleyville 21872 7b
- White Hall 21161 7a
- White Marsh 21162 8a
- White Plains 20695 7b
- Whiteford 21160 7a
- Willards 21874 7b
- Williamsport 21795 7a
- Windsor Mill 21244 7b
- Wingate 21675 8a
- Wittman 21676 8a
- Woodbine 21797 7b
- Woodsboro 21798 7a
- Woodstock 21163 7b
- Woolford 21677 8a
- Worton 21678 7b
- Wye Mills 21679 7b
Other states
Alabama Alaska Arizona Arkansas California Colorado Connecticut Delaware District of Columbia Florida Georgia Hawaii Idaho Illinois Indiana Iowa Kansas Kentucky Louisiana Maine Massachusetts Michigan Minnesota 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 Maryland?
Maryland spans zones 6a–8a. Zone 7b is the most common, covering 61% of the state's ZIP codes. Enter your ZIP code above for your exact zone.
What planting zone is Baltimore, MD?
Baltimore is in USDA zone 7b–8a, depending on the ZIP code. Its average coldest winter night is 5 to 15 °F.
What planting zone is Silver Spring, MD?
Silver Spring is in USDA zone 7b. Its average coldest winter night is 5 to 10 °F.
What planting zone is Bethesda, MD?
Bethesda is in USDA zone 7b. Its average coldest winter night is 5 to 10 °F.
What is the coldest zone in Maryland?
The coldest part of Maryland is zone 6a, with winter lows of -10 to -5 °F. The warmest is zone 8a, at 10 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.
Related tools
Visited Places Map
Colour the countries, states and provinces you’ve been to, share your map and send friends places to visit
Where Food Grows
See which countries grow the most rice, mango, coffee, cocoa and 69 more crops on an animated world map
Unit Converter
Convert units of measurement
Date Calculator
Days between dates, add days, and working days with holidays
Taste Map
The most famous dish and street food of 193 countries: tick the ones you’ve tried and colour your world map
Where Animals Live
See every country where tigers, lions, pandas, penguins, hilsa and 200 more wild animals and fish live