When to plant gai lan (chinese broccoli) in Pennsylvania
Pennsylvania spans USDA zones 5b–7b, so the right time to plant gai lan (chinese broccoli) shifts by weeks across the state. The window to sow seed directly 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 | Direct sow |
|---|---|---|---|---|
| Philadelphia | 7b | March 30 | November 17 | March 9 – April 13 |
| Pittsburgh | 6b | April 18 | October 28 | March 28 – May 2 |
| Allentown | 7a | April 20 | October 24 | March 30 – May 4 |
| Reading | 7a | April 14 | October 29 | March 24 – April 28 |
| Erie | 7a | April 26 | November 4 | April 5 – May 10 |
| Bethlehem | 7a | April 20 | October 24 | March 30 – May 4 |
| Scranton | 6b | April 23 | October 20 | April 2 – May 7 |
| Lancaster | 7a | April 19 | October 24 | March 29 – May 3 |
Gai Lan (Chinese Broccoli) in Pennsylvania: FAQ
When can I plant gai lan (chinese broccoli) in Pennsylvania?
Across Pennsylvania, the time to direct-sow gai lan (chinese broccoli) spans roughly March 9 in Philadelphia to April 24 in Hermitage, each following that city's local frost dates.
Does the gai lan (chinese broccoli) planting date vary across Pennsylvania?
Yes. Pennsylvania publishes 86 cities with their own frost dates, so the right gai lan (chinese 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 gai lan (chinese broccoli) take to grow in Pennsylvania?
Gai Lan (Chinese Broccoli) takes about 50–70 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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