Canadian Hardiness Zones

Zone 0a

Extremely cold Arctic climate with permafrost and minimal vegetation

Alert, NU, Eureka, NU

Zone 0b

Arctic climate with very short growing season

Grise Fiord, NU, Resolute, NU

Zone 1a

High Arctic climate with severe conditions and brief summer

Pond Inlet, NU, Arctic Bay, NU

Zone 1b

Subarctic climate with extreme cold and short summers

Baker Lake, NU, Cambridge Bay, NU

Zone 2a

Cold subarctic climate with limited agriculture

Whitehorse, YT, Yellowknife, NT

Zone 2b

Subarctic climate with cold winters and cool summers

Dawson Creek, BC, Fort McMurray, AB

Zone 3a

Cold continental climate with harsh winters and short growing season

Prince George, BC, Thompson, MB

Zone 3b

Continental climate with cold winters and warm summers

Calgary, AB, Saskatoon, SK

Zone 4a

Cool continental climate with moderate growing season

Winnipeg, MB, Regina, SK

Zone 4b

Temperate continental climate with distinct seasons

Quebec City, QC, Thunder Bay, ON

Zone 5a

Moderate climate with warm summers and cold winters

Ottawa, ON, Montreal, QC

Zone 5b

Temperate climate with reliable growing season

Toronto, ON, London, ON

Zone 6a

Mild temperate climate with extended growing season

Niagara Falls, ON, Windsor, ON

Zone 6b

Maritime temperate climate with moderate temperatures

Vancouver, BC, Victoria, BC

Zone 7a

Mild coastal climate with warm summers and cool winters

Penticton, BC, Kelowna, BC

Zone 7b

Mediterranean-influenced climate with mild winters

Gulf Islands, BC, Tofino, BC

Zone 8a

Warm temperate coastal climate with minimal frost

Salt Spring Island, BC, Comox, BC

Zone 8b

Mild maritime climate with year-round growing potential

Sidney, BC, Parksville, BC

Zone 9a

Very mild coastal climate with rare frost

Southern Vancouver Island, BC

Zone 9b

Subtropical coastal climate with minimal winter cold

Coastal BC sheltered areas