When to plant gai lan (chinese broccoli) in Maine
Maine spans USDA zones 5a–6a, 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 April 4 in Lewiston to April 25 in Sanford — below are local dates for 13 cities, each computed from its own frost dates.
| City | Zone | Last frost | First frost | Direct sow |
|---|---|---|---|---|
| Portland | 6a | April 26 | October 15 | April 5 – May 10 |
| Lewiston | 5b | April 25 | October 19 | April 4 – May 9 |
| Bangor | 5a | May 4 | October 4 | April 13 – May 18 |
| South Portland | 6a | April 26 | October 15 | April 5 – May 10 |
| Auburn | 5b | April 25 | October 19 | April 4 – May 9 |
| Biddeford | 6a | May 9 | October 3 | April 18 – May 23 |
| Sanford | 5b | May 16 | September 30 | April 25 – May 30 |
| Saco | 6a | April 26 | October 15 | April 5 – May 10 |
Gai Lan (Chinese Broccoli) in Maine: FAQ
When can I plant gai lan (chinese broccoli) in Maine?
Across Maine, the time to direct-sow gai lan (chinese broccoli) spans roughly April 4 in Lewiston to April 25 in Sanford, each following that city's local frost dates.
Does the gai lan (chinese broccoli) planting date vary across Maine?
Yes. Maine publishes 13 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 Maine?
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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