Spring planting calendar Last frost around Apr 20
USDA's earliest dates, and range of dates, for safe spring planting in places whose average last freeze is about April 20. We use this column for 314 towns whose NOAA average last frost is nearest April 20.
Spring planting dates
- Corn saladFeb 15 – Apr 15
- SpinachMar 1 – Apr 15
- Cabbage plantsMar 10 – Apr 1
- Chervil and chivesMar 10 – Apr 10
- Collards plantsMar 10 – June 1
- DandelionMar 10 – Apr 10
- Garden peasMar 10 – Apr 10
- GarlicMar 10 – Apr 1
- Onion setsMar 10 – Apr 1
- RadishesMar 10 – May 10
- Rhubarb plantsMar 10 – Apr 10
- TurnipsMar 10 – Apr 1
- Asparagus plantsMar 15 – Apr 15
- Cauliflower plantsMar 15 – Apr 20
- LeeksMar 15 – Apr 15
- Onion plants plantsMar 15 – Apr 10
- Onion seedMar 15 – Apr 1
- PotatoesMar 15 – Apr 10
- ShallotsMar 15 – Apr 15
- SorrelMar 15 – May 1
- BeetsMar 20 – June 1
- Head lettuce plantsMar 20 – Apr 15
- Horseradish plantsMar 20 – Apr 20
- KaleMar 20 – Apr 10
- KohlrabiMar 20 – May 1
- Leaf lettuceMar 20 – May 15
- Mustard greensMar 20 – May 1
- ParsleyMar 20 – Apr 20
- ParsnipsMar 20 – Apr 20
- SalsifyMar 20 – May 1
- Upland cressMar 20 – May 1
- Broccoli plantsMar 25 – Apr 20
- Brussels sprouts plantsMar 25 – Apr 20
- EndiveMar 25 – Apr 15
- Florence fennelMar 25 – Apr 15
- CarrotsApr 1 – May 15
- Swiss chardApr 1 – June 15
- Celery and celeriac plantsApr 10 – May 1
- Snap beansApr 25 – June 30
- Sweet cornApr 25 – June 15
- Cantaloupe (muskmelon)May 1 – June 15
- CucumbersMay 1 – June 15
- Lima beansMay 1 – June 20
- New Zealand spinachMay 1 – June 15
- OkraMay 1 – June 1
- Summer squashMay 1 – June 15
- WatermelonMay 1 – June 15
- TomatoesMay 5 – June 10
- Black-eyed peasMay 10 – June 15
- Eggplant plantsMay 10 – June 1
- Peppers plantsMay 10 – June 1
- SoybeansMay 10 – June 20
- Sweet potatoesMay 10 – June 10
- Witloof chicoryJune 15 – July 1
USDA lists chinese cabbage as generally fall-planted here.
Source: USDA Home and Garden Bulletin No. 9 (1967), “Suburban and Farm Vegetable Gardens,” table 4, column “April 20.” “Plants” means setting out transplants, not sowing seed.
Towns on this calendar
- Arizona Camp Verde
- California Soledad
- Connecticut Stamford, New Haven, Hartford, Bristol, Shelton, Naugatuck, New London
- Idaho Boise City, Coeur d'Alene
- Illinois Aurora, Joliet, Rockford, Peoria, Bloomington, Arlington Heights, Bolingbrook, Palatine and 25 more
- Indiana Indianapolis, Fort Wayne, Fishers, South Bend, Hammond, Gary, Muncie, Anderson and 17 more
- Iowa Des Moines, Davenport, Ankeny, Iowa City, Council Bluffs, Dubuque, Urbandale, Bettendorf and 8 more
- Kansas Topeka, Shawnee, Manhattan, Salina, Hutchinson, Dodge City, Hays, Liberal and 5 more
- Kentucky Covington, Georgetown, Elizabethtown, Florence, Ashland, Winchester, Shepherdsville
- Maine Lewiston
- Maryland Bowie, Westminster, La Plata
- Massachusetts Worcester, Cambridge, Brockton, Lynn, Quincy, Taunton, Peabody, Barnstable Town and 4 more
- Michigan Warren, Westland, Port Huron, Monroe
- Minnesota Minneapolis, St. Paul, Bloomington, Eden Prairie, Cottage Grove, Maplewood, Winona, Red Wing and 2 more
- Missouri St. Joseph, Liberty, Sedalia, Kirksville, Lebanon, West Plains, Smithville, Maryville
- Nebraska Omaha, Lincoln, Bellevue, Grand Island, Fremont, Papillion, Hastings, Columbus and 1 more
- Nevada Fernley
- New Jersey Trenton, Vineland, Princeton, Summit, Point Pleasant, Dover, Phillipsburg, Ramsey and 3 more
- New Mexico Albuquerque, Los Lunas
- New York Buffalo, Yonkers, Rochester, Troy, Poughkeepsie, Middletown, Ossining, Oswego and 1 more
- North Carolina Statesville, Henderson, Mount Airy
- Ohio Columbus, Cincinnati, Toledo, Akron, Dayton, Parma, Canton, Lorain and 41 more
- Oklahoma Guymon
- Oregon Hillsboro, Corvallis, Forest Grove, Dallas, Pendleton, St. Helens, Ontario, Cottage Grove
- Pennsylvania Pittsburgh, Allentown, Scranton, Lancaster, Altoona, State College, Easton, Monroeville and 14 more
- Rhode Island Pawtucket
- South Carolina Gaffney
- Tennessee Johnson City, Gallatin, Bristol, Greeneville, Crossville
- Texas Hereford, Dumas
- Utah West Jordan, Provo, Orem, Ogden, Millcreek, Spanish Fork, Bountiful, American Fork and 6 more
- Virginia Lynchburg, Harrisonburg, Leesburg, Blacksburg, Waynesboro, Christiansburg, Culpeper, Bristol and 1 more
- Washington Maple Valley, Arlington, Monroe, Centralia, Lynden
- West Virginia Charleston, Morgantown, Wheeling, Martinsburg, Fairmont, Clarksburg, South Charleston, St. Albans
- Wisconsin Racine, Eau Claire, Oshkosh, Sheboygan, Oak Creek, Caledonia, Pleasant Prairie, Onalaska and 3 more