Planting calendars by city

Every calendar starts from the city's own frost dates, from 1991 to 2020 climate normals at nearby weather stations, and gives the planting dates GrowSmart's planner uses for that city.

By zone

• Zone 3b
• Zone 4a
• Zone 4b
• Zone 5a
• Zone 5b
• Zone 6a
• Zone 6b
• Zone 7a
• Zone 7b
• Zone 8a
• Zone 8b
• Zone 9a
• Zone 9b
• Zone 10a
• Zone 11a

Canadian cities use Natural Resources Canada zones; US cities use USDA zones. The two scales are not the same.

Alberta

• Calgary: last frost May 23, first frost Sep 10 (garlic)
• Edmonton: last frost May 23, first frost Sep 15 (garlic)
• Lethbridge: last frost May 24, first frost Sep 12 (garlic)
• Red Deer: last frost May 25, first frost Sep 12 (garlic)

British Columbia

• Vancouver: last frost Mar 28, first frost Nov 5
• Victoria: last frost Mar 26, first frost Nov 10

Manitoba

• Brandon: last frost May 21, first frost Sep 21 (garlic)
• Winnipeg: last frost May 23, first frost Sep 22 (garlic)

New Brunswick

• Fredericton: last frost May 14, first frost Sep 24 (garlic)
• Moncton: last frost May 23, first frost Oct 1 (garlic)
• Saint John: last frost May 17, first frost Oct 1 (garlic)

Newfoundland and Labrador

• St. John's: last frost Jun 2, first frost Oct 18 (garlic)

Nova Scotia

• Halifax: last frost May 8, first frost Oct 17 (garlic)

Ontario

• Barrie: last frost May 12, first frost Oct 5 (garlic)
• Guelph: last frost May 6, first frost Oct 6 (garlic)
• Hamilton: last frost Apr 23, first frost Oct 17 (garlic)
• Kingston: last frost May 2, first frost Oct 11 (garlic)
• Kitchener: last frost May 7, first frost Oct 5 (garlic)
• London: last frost May 8, first frost Oct 10 (garlic)
• North Bay: last frost May 17, first frost Sep 27 (garlic)
• Oshawa: last frost Apr 28, first frost Oct 19 (garlic)
• Ottawa: last frost May 6, first frost Oct 1 (garlic)
• Owen Sound: last frost May 10, first frost Oct 8 (garlic)
• Peterborough: last frost May 14, first frost Oct 3 (garlic)
• Sault Ste. Marie: last frost May 22, first frost Oct 1 (garlic)
• St. Catharines: last frost Apr 29, first frost Oct 23 (garlic)
• Sudbury: last frost May 17, first frost Sep 27 (garlic)
• Thunder Bay: last frost May 22, first frost Oct 5 (garlic)
• Toronto: last frost Apr 28, first frost Oct 19 (garlic)
• Windsor: last frost Apr 25, first frost Oct 28 (garlic)

Prince Edward Island

• Charlottetown: last frost May 26, first frost Oct 10 (garlic)

Quebec

• Gatineau: last frost May 18, first frost Sep 21 (garlic)
• Montreal: last frost May 1, first frost Oct 8 (garlic)
• Quebec City: last frost May 14, first frost Sep 28 (garlic)
• Sherbrooke: last frost May 28, first frost Sep 17 (garlic)
• Trois-Rivières: last frost May 8, first frost Sep 28 (garlic)

Saskatchewan

• Regina: last frost May 20, first frost Sep 12 (garlic)
• Saskatoon: last frost May 21, first frost Sep 14 (garlic)

Alabama

• Birmingham: last frost Mar 23, first frost Nov 8

Arizona

• Phoenix: last frost Jan 21, first frost Dec 15
• Tucson: last frost Feb 20, first frost Dec 5

California

• Sacramento: last frost Feb 2, first frost Dec 1
• San Diego: last frost Jan 6, first frost Dec 31
• San Jose: last frost Jan 6, first frost Dec 23

District of Columbia

• Washington: last frost Apr 3, first frost Nov 8

Florida

• Jacksonville: last frost Feb 28, first frost Dec 5

Georgia

• Atlanta: last frost Mar 25, first frost Nov 10

Iowa

• Des Moines: last frost Apr 22, first frost Oct 18 (garlic)

Kentucky

• Louisville: last frost Mar 31, first frost Nov 7

Louisiana

• New Orleans: last frost Feb 1, first frost Dec 31

Maine

• Portland: last frost Apr 28, first frost Oct 18 (garlic)

Maryland

• Baltimore: last frost Apr 5, first frost Nov 5

Michigan

• Detroit: last frost Apr 22, first frost Oct 22 (garlic)

Minnesota

• Duluth: last frost May 15, first frost Oct 9 (garlic)
• Minneapolis: last frost Apr 28, first frost Oct 12 (garlic)

New York

• Albany: last frost Apr 27, first frost Oct 15 (garlic)
• Buffalo: last frost May 5, first frost Oct 15 (garlic)
• Rochester: last frost Apr 28, first frost Oct 20 (garlic)
• Syracuse: last frost May 1, first frost Oct 19 (garlic)

North Carolina

• Charlotte: last frost Apr 1, first frost Nov 5
• Raleigh: last frost Mar 28, first frost Nov 8

North Dakota

• Fargo: last frost May 5, first frost Oct 2 (garlic)

Oklahoma

• Oklahoma City: last frost Apr 2, first frost Nov 5

Oregon

• Portland: last frost Feb 25, first frost Dec 1

Pennsylvania

• Philadelphia: last frost Apr 12, first frost Nov 1

South Carolina

• Charleston: last frost Mar 10, first frost Nov 30

Tennessee

• Nashville: last frost Apr 5, first frost Oct 28

Texas

• Austin: last frost Mar 10, first frost Nov 20
• Dallas: last frost Mar 9, first frost Nov 22
• Houston: last frost Jan 31, first frost Dec 27
• San Antonio: last frost Feb 22, first frost Dec 2

Vermont

• Burlington: last frost May 2, first frost Oct 14 (garlic)

Virginia

• Richmond: last frost Apr 7, first frost Nov 1

Washington

• Seattle: last frost Mar 15, first frost Nov 15

Wisconsin

• Green Bay: last frost May 1, first frost Oct 9 (garlic)
• Madison: last frost May 1, first frost Oct 10 (garlic)
• Milwaukee: last frost Apr 28, first frost Oct 22 (garlic)

Cities by zone

Zone 3b

• Brandon, MB (NRCan)
• Red Deer, AB (NRCan)
• Regina, SK (NRCan)
• Saskatoon, SK (NRCan)

Zone 4a

• Calgary, AB (NRCan)
• Edmonton, AB (NRCan)
• Fargo, ND (USDA)
• Thunder Bay, ON (NRCan)
• Winnipeg, MB (NRCan)

Zone 4b

• Lethbridge, AB (NRCan)
• North Bay, ON (NRCan)
• Sudbury, ON (NRCan)

Zone 5a

• Duluth, MN (USDA)
• Minneapolis, MN (USDA)
• Quebec City, QC (NRCan)
• Sault Ste. Marie, ON (NRCan)
• Sherbrooke, QC (NRCan)
• Trois-Rivières, QC (NRCan)

Zone 5b

• Barrie, ON (NRCan)
• Burlington, VT (USDA)
• Des Moines, IA (USDA)
• Fredericton, NB (NRCan)
• Gatineau, QC (NRCan)
• Green Bay, WI (USDA)
• Guelph, ON (NRCan)
• Kitchener, ON (NRCan)
• Madison, WI (USDA)
• Moncton, NB (NRCan)
• Ottawa, ON (NRCan)
• Owen Sound, ON (NRCan)
• Peterborough, ON (NRCan)
• Saint John, NB (NRCan)
• St. John's, NL (NRCan)

Zone 6a

• Albany, NY (USDA)
• Charlottetown, PE (NRCan)
• Halifax, NS (NRCan)
• Kingston, ON (NRCan)
• Milwaukee, WI (USDA)
• Montreal, QC (NRCan)
• Oshawa, ON (NRCan)
• Portland, ME (USDA)
• Rochester, NY (USDA)
• Syracuse, NY (USDA)

Zone 6b

• Buffalo, NY (USDA)
• Detroit, MI (USDA)
• Hamilton, ON (NRCan)
• London, ON (NRCan)

Zone 7a

• Louisville, KY (USDA)
• St. Catharines, ON (NRCan)
• Toronto, ON (NRCan)
• Windsor, ON (NRCan)

Zone 7b

• Nashville, TN (USDA)
• Oklahoma City, OK (USDA)
• Philadelphia, PA (USDA)
• Richmond, VA (USDA)
• Washington, DC (USDA)

Zone 8a

• Atlanta, GA (USDA)
• Baltimore, MD (USDA)
• Birmingham, AL (USDA)
• Charlotte, NC (USDA)
• Raleigh, NC (USDA)

Zone 8b

• Dallas, TX (USDA)
• Victoria, BC (NRCan)

Zone 9a

• Austin, TX (USDA)
• Charleston, SC (USDA)
• Portland, OR (USDA)
• San Antonio, TX (USDA)
• Seattle, WA (USDA)
• Vancouver, BC (NRCan)

Zone 9b

• Houston, TX (USDA)
• Jacksonville, FL (USDA)
• New Orleans, LA (USDA)
• Sacramento, CA (USDA)
• San Jose, CA (USDA)
• Tucson, AZ (USDA)

Zone 10a

• Phoenix, AZ (USDA)

Zone 11a

• San Diego, CA (USDA)