When to plant Celery in Pennsylvania
In spring, from Mar 15 – Apr 15 in Chester to Apr 20 – June 15 in St. Marys.
In fall, from June 1 – Aug 1 in Allentown to July 15 – Sept 1 in Philadelphia.
Dates are for setting out plants. USDA's earliest safe spring and latest safe fall planting dates, matched to each place's average frost dates.
| Place | Spring | Fall |
|---|---|---|
| Allentown | Apr 10 – May 1 | June 1 – Aug 1 |
| Altoona | Apr 10 – May 1 | June 1 – Aug 1 |
| Baldwin | Apr 10 – May 1 | June 15 – Aug 15 |
| Berwick | Apr 15 – May 1 | June 1 – July 15 |
| Bethel Park | Apr 10 – May 1 | June 15 – Aug 15 |
| Bethlehem | Apr 10 – May 1 | June 1 – Aug 1 |
| Bloomsburg | Apr 15 – May 1 | June 1 – Aug 1 |
| Butler | Apr 20 – June 15 | June 1 – July 15 |
| Carlisle | Apr 10 – May 1 | June 1 – Aug 1 |
| Chambersburg | Apr 10 – May 1 | June 1 – Aug 1 |
| Chester | Mar 15 – Apr 15 | July 15 – Sept 1 |
| Coatesville | Apr 10 – May 1 | June 1 – Aug 1 |
| Columbia | Apr 15 – May 1 | June 1 – July 15 |
| Darby | Mar 15 – Apr 15 | July 1 – Aug 15 |
| Dunmore | Apr 10 – May 1 | June 1 – Aug 1 |
| Easton | Apr 10 – May 1 | June 1 – Aug 1 |
| Elizabethtown | Apr 1 – 20 | June 15 – Aug 15 |
| Emmaus | Apr 10 – May 1 | June 1 – Aug 1 |
| Ephrata | Apr 10 – May 1 | June 1 – Aug 1 |
| Erie | Apr 15 – May 1 | June 15 – Aug 15 |
| Franklin Park | Apr 10 – May 1 | June 15 – Aug 15 |
| Greensburg | Apr 15 – May 1 | June 1 – July 15 |
| Hanover | Apr 10 – May 1 | June 1 – Aug 1 |
| Harrisburg | Apr 1 – 20 | June 1 – Aug 1 |
| Hazleton | Apr 15 – May 1 | June 1 – Aug 1 |
| Hermitage | Apr 20 – June 15 | June 1 – July 5 |
| Indiana | Apr 20 – June 15 | June 1 – July 15 |
| Jefferson Hills | Apr 10 – May 1 | June 15 – Aug 15 |
| Johnstown | Apr 15 – May 1 | June 1 – Aug 1 |
| Kingston | Apr 10 – May 1 | June 1 – Aug 1 |
| Lancaster | Apr 10 – May 1 | June 1 – Aug 1 |
| Lansdale | Apr 1 – 20 | June 15 – Aug 15 |
| Lansdowne | Mar 15 – Apr 15 | July 1 – Aug 15 |
| Lebanon | Apr 10 – May 1 | June 1 – Aug 1 |
| Lower Burrell | Apr 10 – May 1 | June 15 – Aug 15 |
| McKeesport | Apr 15 – May 1 | June 1 – Aug 1 |
| Meadville | Apr 15 – May 1 | June 1 – Aug 1 |
| Mechanicsburg | Apr 1 – 20 | June 15 – Aug 15 |
| Monroeville | Apr 10 – May 1 | June 1 – Aug 1 |
| Munhall | Apr 1 – 20 | July 1 – Aug 15 |
| Murrysville | Apr 10 – May 1 | June 1 – Aug 1 |
| Nanticoke | Apr 20 – June 15 | June 1 – July 15 |
| New Castle | Apr 15 – May 1 | June 1 – Aug 1 |
| New Kensington | Apr 10 – May 1 | June 15 – Aug 15 |
| Norristown | Apr 1 – 20 | June 15 – Aug 15 |
| Northampton | Apr 10 – May 1 | June 1 – Aug 1 |
| Philadelphia | Mar 15 – Apr 15 | July 15 – Sept 1 |
| Phoenixville | Apr 10 – May 1 | June 15 – Aug 15 |
| Pittsburgh | Apr 10 – May 1 | June 15 – Aug 15 |
| Plum | Apr 10 – May 1 | June 15 – Aug 15 |
| Pottstown | Apr 10 – May 1 | June 1 – Aug 1 |
| Pottsville | Apr 15 – May 1 | June 1 – Aug 1 |
| Reading | Apr 1 – 20 | June 15 – Aug 15 |
| Scranton | Apr 10 – May 1 | June 1 – Aug 1 |
| Sharon | Apr 15 – May 1 | June 1 – Aug 1 |
| St. Marys | Apr 20 – June 15 | June 1 – July 15 |
| State College | Apr 10 – May 1 | June 15 – Aug 15 |
| Washington | Apr 10 – May 1 | June 1 – Aug 1 |
| Waynesboro | Apr 10 – May 1 | June 1 – Aug 1 |
| West Chester | Apr 15 – May 1 | June 1 – Aug 1 |
| West Mifflin | Apr 10 – May 1 | June 15 – Aug 15 |
| Whitehall | Apr 10 – May 1 | June 15 – Aug 15 |
| Wilkes-Barre | Apr 10 – May 1 | June 1 – Aug 1 |
| Wilkinsburg | Apr 1 – 20 | July 1 – Aug 15 |
| Williamsport | Apr 10 – May 1 | June 1 – Aug 1 |
| Wyomissing | Apr 1 – 20 | June 15 – Aug 15 |
| Yeadon | Mar 15 – Apr 15 | July 1 – Aug 15 |
| York | Apr 15 – May 1 | June 1 – Aug 1 |
Planting dates: USDA Home and Garden Bulletin No. 9 (1967), tables 4 and 5. Frost dates: NOAA U.S. Climate Normals 1991–2020. “—” means the place's frost date is outside the table. The full USDA table for celery and celeriac.