When to plant gai lan (chinese broccoli) in Michigan
Michigan spans USDA zones 4b–6b, 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 29 in Port Huron to April 28 in Cadillac — below are local dates for 101 cities, each computed from its own frost dates.
| City | Zone | Last frost | First frost | Direct sow |
|---|---|---|---|---|
| Detroit | 6b | April 27 | October 25 | April 6 – May 11 |
| Grand Rapids | 6a | May 6 | October 10 | April 15 – May 20 |
| Warren | 6b | April 21 | October 31 | March 31 – May 5 |
| Sterling Heights | 6b | April 30 | October 24 | April 9 – May 14 |
| Ann Arbor | 6a | May 5 | October 10 | April 14 – May 19 |
| Lansing | 6a | May 1 | October 13 | April 10 – May 15 |
| Dearborn | 6b | May 1 | October 15 | April 10 – May 15 |
| Livonia | 6b | May 1 | October 17 | April 10 – May 15 |
Gai Lan (Chinese Broccoli) in Michigan: FAQ
When can I plant gai lan (chinese broccoli) in Michigan?
Across Michigan, the time to direct-sow gai lan (chinese broccoli) spans roughly March 29 in Port Huron to April 28 in Cadillac, each following that city's local frost dates.
Does the gai lan (chinese broccoli) planting date vary across Michigan?
Yes. Michigan publishes 101 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 Michigan?
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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