When to plant broccoli in Pennsylvania
Pennsylvania spans USDA zones 5b–7b, so the right time to plant broccoli shifts by weeks across the state. The window to transplant seedlings outdoors runs from about March 9 in Philadelphia to April 24 in Hermitage — below are local dates for 86 cities, each computed from its own frost dates.
| City | Zone | Last frost | First frost | Transplant out |
|---|---|---|---|---|
| Philadelphia | 7b | March 30 | November 17 | March 9 – March 23 |
| Pittsburgh | 6b | April 18 | October 28 | March 28 – April 11 |
| Allentown | 7a | April 20 | October 24 | March 30 – April 13 |
| Reading | 7a | April 14 | October 29 | March 24 – April 7 |
| Erie | 7a | April 26 | November 4 | April 5 – April 19 |
| Bethlehem | 7a | April 20 | October 24 | March 30 – April 13 |
| Scranton | 6b | April 23 | October 20 | April 2 – April 16 |
| Lancaster | 7a | April 19 | October 24 | March 29 – April 12 |
Broccoli in Pennsylvania: FAQ
When can I plant broccoli in Pennsylvania?
Across Pennsylvania, the time to transplant broccoli spans roughly March 9 in Philadelphia to April 24 in Hermitage, each following that city's local frost dates.
Does the broccoli planting date vary across Pennsylvania?
Yes. Pennsylvania publishes 86 cities with their own frost dates, so the right broccoli planting window shifts by weeks between the warmest and coldest parts of the state — use your city's page for the exact dates.
How long does broccoli take to grow in Pennsylvania?
Broccoli takes about 55–80 days to reach harvest once planted — check that this fits inside your city's frost-free season on its place page.
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