Ontario Plant Hardiness Climate Zones

cold tolerant toka plum

Ontario Climate

Ontario's climate is humid continental. Ontario has three main climatic regions:

  1. The Southern Ontario Region greatly influenced by the surrounding Great Lakes getting mild to moderate humid continental climate with warm to hot, humid summers and mild to cold winters.
  2. The Central and Eastern Ontario Region has a moderate humid continental climate with a warm and sometimes hot summers with colder, longer winters, ample snowfall.
  3. The Northern Ontario have a subarctic climate with long, severely cold winters and short, cool to warm summers with dramatic temperature changes possible in all seasons.

Now you can click on that zone number near your city name in this table to find the most common and best growing zone-compatible fruit trees, vegetables, herbs, ornamentals and flowers in each area of Ontario in Canada.

Acton Zone 5b
Actons Corners Zone 5b
Ajax Zone 6b
Alexandria Zone 5a
Alliston Zone 5b
Almonte Zone 5a
Amherstburg Zone 7a
Amherstburg Zone 7a
Angus Zone 5b
Arnprior Zone 5a
Arthur Zone 5b
Aurora Zone 5b
Aylmer Zone 6b
Azilda Zone 4b
Ignace Zone 3b
Ingersoll Zone 6a
Ingleside Zone 5b
Ingolf Zone 3b
Iron Bridge Zone 5a
Iroquois Falls Zone 2b
Queensville Zone 5b
Bala Zone 5a
Ballantrae Zone 5b
Bancroft Zone 4a
Barrie Zone 5b
Barry's Bay Zone 4a
Baysville Zone 4b
Beeton Zone 5b
Belle River Zone 7a
Belleville Zone 6a
Belmont Zone 6b
Blenheim Zone 6b
Blind River Zone 5a
Bowmanville Zone 6a
Bracebridge Zone 4b
Bradford Zone 5b
Brampton Zone 5b
Branchton Zone 6a
Brantford Zone 6a
Brighton Zone 6a
Brockville Zone 6a
Brooklin Zone 6a
Bruce Mines Zone 5a
Burlington Zone 6b
Kanata Zone 5b
Kapuskasing Zone 2b
Kapuskasing Zone 2b
Kearney Zone 4b
Kemptville Zone 5b
Kenora Zone 4a
Keswick Zone 5b
Kinburn Zone 5a
Kincardine Zone 6a
King City Zone 5b
Kingston Zone 6a
Kirkland Lake Zone 3a
Kitchener Zone 5b
Red Lake Zone 3a
Red Rock Zone 3a
Renfrew Zone 5a
Richmond Hill Zone 6a
Ridgetown Zone 6b
Rockton Zone 6a
Rockwood Zone 5b
Russell Zone 5b
CFB Petawawa Zone 4b
Caledon Zone 5b
Caledonia Zone 6b
Cambridge Zone 5b
Capreol Zone 4a
Carleton Place Zone 5a
Carlisle Zone 6a
Carlow Mayo Zone 4a
Cartier Zone 4a
Casselman Zone 5a
Cayuga Zone 6b
Chatham Zone 6b
Chelmsford Zone 4b
Chesley Zone 5b
Clarence-Rockland Zone 5a
Clarence-Rockland Zone 5a
Clinton Zone 6a
Cobalt Zone 3b
Cobourg Zone 6a
Cochrane Zone 2b
Collingwood Zone 6a
Cornwall Zone 5b
Cornwall Zone 5b
Corunna Zone 7a
Courtice Zone 6a
LaSalle Zone 7a
Lakefield Zone 5b
Lanark Zone 5a
Lansdowne Zone 6a
Leamington Zone 7a
Lefaivre Zone 5a
Lefaivre Zone 5a
Levack Zone 4a
Limerick Zone 4b
Lincoln Zone 6b
Lindsay Zone 5b
Listowel Zone 5b
Little Current Zone 5a
London Zone 6b
Longlac Zone 2b
Sandy Lake Zone 2b
Sarnia Zone 6b
Sauble Beach Zone 6a
Sault Ste. Marie Zone 4b
Sault Ste. Marie Zone 4b
Schreiber Zone 3a
Seaforth Zone 6a
Shannonville Zone 6a
Sheffield Zone 6a
Shelburne Zone 5a
Simcoe Zone 6b
Sioux Narrows Zone 4a
Skead Zone 4b
Smiths Falls Zone 5b
Smooth Rock Falls Zone 2b
Southampton Zone 6a
St Thomas Zone 6a
St. Catharines Zone 7a
St. Marys Zone 6a
Stayner Zone 5b
Stittsville Zone 5b
Stoney Creek Zone 6b
Stouffville Zone 6a
Stratford Zone 6a
Strathroy Zone 6b
Sturgeon Falls Zone 4b
Sudbury Zone 4b
Sutton Zone 5b
Sutton West Zone 5b
Deep River Zone 4b
Delhi Zone 6a
Deseronto Zone 6a
Dorchester Zone 6b
Dorset Zone 4b
Dowling Zone 4a
Dresden Zone 6b
Dryden Zone 3b
Dubreuilville Zone 3a
Dundas Zone 6b
Dunnville Zone 6b
Durham Zone 5b
MacTier Zone 5a
Manotick Zone 5b
Marathon Zone 3b
Markham Zone 6a
Marmora Zone 5b
Massey Zone 4b
Matachewan Zone 3a
Mattawa Zone 4b
Mattawa Zone 4b
Maynooth Zone 4a
Meaford Zone 6a
Merrickville Zone 5b
Metcalfe Zone 5b
Midland Zone 5b
Milton Zone 6a
Minden Zone 4b
Mississauga Zone 6a
Mitchell Zone 6a
Moose Factory Zone 1b
Moosonee Zone 1b
Morrisburg Zone 5a
Mount Albert Zone 5b
Mount Forest Zone 5b
Tavistock Zone 6a
Tecumseh Zone 7a
Temagami Zone 3b
Temiskaming Shores Zone 3b
Terrace Bay Zone 3b
Thessalon Zone 5a
Thornbury Zone 6a
Thorold Zone 6b
Thunder Bay Zone 3b
Tillsonburg Zone 6b
Timmins Zone 3a
Toronto Zone 7a
Trenton Zone 6a
Tudor and Cashel Zone 5a
Tweed Zone 5b
Tyendinaga Zone 6a
Ear Falls Zone 3b
Elliot Lake Zone 4b
Elmira Zone 5b
Elmvale Zone 5b
Embrun Zone 5b
Emeryville Zone 7a
Emo Zone 4a
Englehart Zone 3a
Erin Zone 5b
Ernestown Zone 6a
Espanola Zone 4b
Espanola Zone 4b
Essex Zone 7a
Exeter Zone 6a
Napanee Zone 6a
Nepean Zone 5b
New Hamburg Zone 6a
New Liskeard Zone 3b
Newcastle Zone 6a
Newmarket Zone 5b
Newton Robinson Zone 5b
Niagara Falls Zone 6b
Niagara-on-the-Lake Zone 7a
Nipigon Zone 3a
North Bay Zone 4b
North Cobalt Zone 3b
Northshore Zone 5a
Norwich Zone 6a
Uxbridge Zone 5b
Faraday Zone 4a
Fenelon Falls Zone 5a
Fennells Corner Zone 5b
Fergus Zone 5b
Fordwich Zone 5b
Fort Albany Zone 1b
Fort Erie Zone 6b
Fort Frances Zone 4a
Fort Severn Zone 1a
Freelton Zone 6a
Oakville Zone 6b
Onaping Zone 4a
Orangeville Zone 5a
Orillia Zone 5b
Oshawa Zone 6a
Ottawa Zone 5b
Owen Sound Zone 6a
Val Caron Zone 4b
Val Therese Zone 4b
Vandorf Zone 5b
Vaughan Zone 6a
Victoria Harbour Zone 5b
Galt Zone 6a
Gananoque Zone 6a
Georgetown Zone 5b
Geraldton Zone 2b
Glencoe Zone 6b
Goderich Zone 6a
Grafton Zone 6a
Gravenhurst Zone 5a
Grimsby Zone 7a
Guelph Zone 5b
Paisley Zone 5b
Palmerston Zone 5b
Paris Zone 6a
Parry Sound Zone 5b
Peawanuck Zone 0b
Pelham Zone 6b
Pembroke Zone 4b
Penetanguishene Zone 5b
Perth Zone 5b
Petawawa Zone 4b
Peterborough Zone 5b
Petrolia Zone 6b
Pickering Zone 6b
Picton Zone 6a
Pikangikum Zone 2b
Pleasant Point Zone 5a
Port Carling Zone 5a
Port Colborne Zone 6b
Port Dover Zone 6b
Port Elgin Zone 6a
Port Hope Zone 6a
Port Lambton Zone 7a
Port Perry Zone 5b
Port Stanley Zone 6b
Powassan Zone 4b
Prescott Zone 5b
Preston Zone 6a
Prince Edward County Zone 6a
Wainfleet Township Zone 6b
Walkerton Zone 5b
Wallaceburg Zone 6b
Wasaga Beach Zone 6a
Waterdown Zone 6a
Waterford Zone 6a
Waterloo Zone 5b
Wawa Zone 3b
Welland Zone 6b
West Lincoln Township Zone 6b
Wheatley Zone 7a
Whitby Zone 6a
Wiarton Zone 6a
Williamsburg Zone 5a
Winchester Zone 5a
Windsor Zone 7a
Winona Zone 7a
Wollaston Zone 4b
Woodstock Zone 6a
Hagersville Zone 6b
Haileybury Zone 3b
Haliburton Zone 4b
Hamilton Zone 6b
Hanmer Zone 4b
Hanover Zone 5b
Harrow Zone 7a
Harrowsmith Zone 5b
Hawkesbury Zone 5a
Hawkesbury Zone 5a
Hearst Zone 2a
Hespeler Zone 5b
Holland Landing Zone 5b
Huntsville Zone 4b
Huron Shores Zone 4b