Growing Calendar

MenuClose

Planting zones and frost dates by state

Pick a state for its zones, how frost dates vary across it and the planting calendar for each of its larger cities.

StateZonesTypical last frostLargest cities
Alabama7b–9bMar 3 to Apr 4Huntsville, Mobile, Birmingham
Alaska1a–8bApr 29 to May 30Anchorage
Arizona5b–10aJan 20 to May 20Phoenix, Tucson, Mesa
Arkansas7a–8bMar 16 to Apr 9Little Rock, Fayetteville, Fort Smith
California5b–11aJan 12 to May 8Los Angeles, San Diego, San Jose
Colorado4a–7aMay 1 to Jun 9Denver, Colorado Springs, Aurora
Connecticut6a–7bApr 5 to May 8Bridgeport, Stamford, New Haven
Delaware7a–8aApr 4 to Apr 8Wilmington
Florida8b–11bJan 25 to Mar 8Jacksonville, Miami, Tampa
Georgia7b–9aMar 5 to Apr 2Atlanta, Columbus, Augusta-Richmond County
Hawaii10b–13aRareUrban Honolulu
Idaho4a–7bApr 24 to Jun 9Boise City, Meridian, Nampa
Illinois5a–7aApr 8 to Apr 26Chicago, Aurora, Naperville
Indiana5b–7aApr 11 to Apr 29Indianapolis city, Fort Wayne, Evansville
Iowa4b–6aApr 20 to May 3Des Moines, Cedar Rapids, Davenport
Kansas6a–7aApr 8 to Apr 27Wichita, Overland Park, Kansas City
Kentucky6b–7bApr 3 to Apr 24Louisville/Jefferson County, Lexington-Fayette urban county, Bowling Green
Louisiana8b–10aJan 30 to Mar 19New Orleans, Baton Rouge, Shreveport
Maine3b–7aApr 27 to May 16Portland
Maryland6a–8aMar 24 to Apr 19Baltimore, Frederick, Gaithersburg
Massachusetts5b–7bApr 4 to May 6Boston, Springfield, Cambridge
Michigan4a–7aApr 21 to May 22Detroit, Grand Rapids, Warren
Minnesota3a–5aApr 24 to May 17Minneapolis, St. Paul, Rochester
Mississippi7b–9aMar 5 to Apr 1Jackson, Gulfport, Southaven
Missouri5b–8aApr 4 to Apr 19Kansas City, St. Louis, Springfield
Montana3b–6bMay 9 to Jun 8Billings, Missoula, Great Falls
Nebraska5a–6aApr 19 to May 8Omaha, Lincoln, Bellevue
Nevada5a–9bJan 20 to Jun 5Las Vegas, Henderson, North Las Vegas
New Hampshire4a–6bApr 30 to May 18Manchester, Nashua
New Jersey6b–8aApr 2 to Apr 25Newark, Jersey City, Paterson
New Mexico5a–8bMar 28 to May 31Albuquerque, Las Cruces, Rio Rancho
New York4a–7bMar 30 to May 14New York, Buffalo, Yonkers
North Carolina6b–9aMar 22 to Apr 17Charlotte, Raleigh, Greensboro
North Dakota3b–4bMay 6 to May 19Fargo, Bismarck, Grand Forks
Ohio6a–7aApr 16 to May 1Columbus, Cleveland, Cincinnati
Oklahoma6b–8aMar 28 to Apr 13Oklahoma City, Tulsa, Norman
Oregon5b–9bMar 13 to Jun 3Portland, Salem, Eugene
Pennsylvania5b–8aApr 13 to May 10Philadelphia, Pittsburgh, Allentown
Rhode Island6b–7bApr 11 to May 3Providence, Cranston, Warwick
South Carolina8a–9bMar 3 to Apr 4Charleston, Columbia, North Charleston
South Dakota4a–5bMay 1 to May 14Sioux Falls, Rapid City
Tennessee6b–8aMar 26 to Apr 20Nashville-Davidson, Memphis, Knoxville
Texas6b–10bJan 30 to Apr 2Houston, San Antonio, Dallas
Utah4a–8bApr 8 to Jun 1Salt Lake City, West Valley City, West Jordan
Vermont4a–5bMay 1 to May 20
Virginia6a–8bMar 27 to Apr 26Virginia Beach, Chesapeake, Richmond
Washington6a–9bMar 8 to May 14Seattle, Spokane, Tacoma
West Virginia5b–7aApr 15 to May 5
Wisconsin4a–6aApr 24 to May 19Milwaukee, Madison, Green Bay
Wyoming4a–5bMay 11 to Jun 9Cheyenne, Casper