When to plant Rhubarb in Pennsylvania
In spring, from Mar 1 – Apr 1 in Elizabethtown to Apr 1 – May 1 in St. Marys.
In fall, from Oct 1 – Nov 1 in Hermitage to Nov 1 – Dec 1 in Wyomissing.
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 | Mar 10 – Apr 10 | Oct 15 – Dec 1Now |
| Altoona | Mar 10 – Apr 10 | Oct 15 – Dec 1Now |
| Baldwin | Mar 10 – Apr 10 | Nov 1 – Dec 1Soon |
| Berwick | Mar 20 – Apr 15 | Oct 15 – Nov 15Now |
| Bethel Park | Mar 10 – Apr 10 | Nov 1 – Dec 1Soon |
| Bethlehem | Mar 10 – Apr 10 | Oct 15 – Dec 1Now |
| Bloomsburg | Mar 20 – Apr 15 | Oct 15 – Dec 1Now |
| Butler | Apr 1 – May 1 | Oct 15 – Nov 15Now |
| Carlisle | Mar 10 – Apr 10 | Oct 15 – Dec 1Now |
| Chambersburg | Mar 10 – Apr 10 | Oct 15 – Dec 1Now |
| Chester | Not listed | Not listed |
| Coatesville | Mar 10 – Apr 10 | Oct 15 – Dec 1Now |
| Columbia | Mar 20 – Apr 15 | Oct 15 – Nov 15Now |
| Darby | Not listed | Not listed |
| Dunmore | Mar 10 – Apr 10 | Oct 15 – Dec 1Now |
| Easton | Mar 10 – Apr 10 | Oct 15 – Dec 1Now |
| Elizabethtown | Mar 1 – Apr 1 | Nov 1 – Dec 1Soon |
| Emmaus | Mar 10 – Apr 10 | Oct 15 – Dec 1Now |
| Ephrata | Mar 10 – Apr 10 | Oct 15 – Dec 1Now |
| Erie | Mar 20 – Apr 15 | Nov 1 – Dec 1Soon |
| Franklin Park | Mar 10 – Apr 10 | Nov 1 – Dec 1Soon |
| Greensburg | Mar 20 – Apr 15 | Oct 15 – Nov 15Now |
| Hanover | Mar 10 – Apr 10 | Oct 15 – Dec 1Now |
| Harrisburg | Mar 1 – Apr 1 | Oct 15 – Dec 1Now |
| Hazleton | Mar 20 – Apr 15 | Oct 15 – Dec 1Now |
| Hermitage | Apr 1 – May 1 | Oct 1 – Nov 1Now |
| Indiana | Apr 1 – May 1 | Oct 15 – Nov 15Now |
| Jefferson Hills | Mar 10 – Apr 10 | Nov 1 – Dec 1Soon |
| Johnstown | Mar 20 – Apr 15 | Oct 15 – Dec 1Now |
| Kingston | Mar 10 – Apr 10 | Oct 15 – Dec 1Now |
| Lancaster | Mar 10 – Apr 10 | Oct 15 – Dec 1Now |
| Lansdale | Mar 1 – Apr 1 | Nov 1 – Dec 1Soon |
| Lansdowne | Not listed | Not listed |
| Lebanon | Mar 10 – Apr 10 | Oct 15 – Dec 1Now |
| Lower Burrell | Mar 10 – Apr 10 | Nov 1 – Dec 1Soon |
| McKeesport | Mar 20 – Apr 15 | Oct 15 – Dec 1Now |
| Meadville | Mar 20 – Apr 15 | Oct 15 – Dec 1Now |
| Mechanicsburg | Mar 1 – Apr 1 | Nov 1 – Dec 1Soon |
| Monroeville | Mar 10 – Apr 10 | Oct 15 – Dec 1Now |
| Munhall | Mar 1 – Apr 1 | Not listed |
| Murrysville | Mar 10 – Apr 10 | Oct 15 – Dec 1Now |
| Nanticoke | Apr 1 – May 1 | Oct 15 – Nov 15Now |
| New Castle | Mar 20 – Apr 15 | Oct 15 – Dec 1Now |
| New Kensington | Mar 10 – Apr 10 | Nov 1 – Dec 1Soon |
| Norristown | Mar 1 – Apr 1 | Nov 1 – Dec 1Soon |
| Northampton | Mar 10 – Apr 10 | Oct 15 – Dec 1Now |
| Philadelphia | Not listed | Not listed |
| Phoenixville | Mar 10 – Apr 10 | Nov 1 – Dec 1Soon |
| Pittsburgh | Mar 10 – Apr 10 | Nov 1 – Dec 1Soon |
| Plum | Mar 10 – Apr 10 | Nov 1 – Dec 1Soon |
| Pottstown | Mar 10 – Apr 10 | Oct 15 – Dec 1Now |
| Pottsville | Mar 20 – Apr 15 | Oct 15 – Dec 1Now |
| Reading | Mar 1 – Apr 1 | Nov 1 – Dec 1Soon |
| Scranton | Mar 10 – Apr 10 | Oct 15 – Dec 1Now |
| Sharon | Mar 20 – Apr 15 | Oct 15 – Dec 1Now |
| St. Marys | Apr 1 – May 1 | Oct 15 – Nov 15Now |
| State College | Mar 10 – Apr 10 | Nov 1 – Dec 1Soon |
| Washington | Mar 10 – Apr 10 | Oct 15 – Dec 1Now |
| Waynesboro | Mar 10 – Apr 10 | Oct 15 – Dec 1Now |
| West Chester | Mar 20 – Apr 15 | Oct 15 – Dec 1Now |
| West Mifflin | Mar 10 – Apr 10 | Nov 1 – Dec 1Soon |
| Whitehall | Mar 10 – Apr 10 | Nov 1 – Dec 1Soon |
| Wilkes-Barre | Mar 10 – Apr 10 | Oct 15 – Dec 1Now |
| Wilkinsburg | Mar 1 – Apr 1 | Not listed |
| Williamsport | Mar 10 – Apr 10 | Oct 15 – Dec 1Now |
| Wyomissing | Mar 1 – Apr 1 | Nov 1 – Dec 1Soon |
| Yeadon | Not listed | Not listed |
| York | Mar 20 – Apr 15 | Oct 15 – Dec 1Now |
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 rhubarb.