When to plant gai lan (chinese broccoli) in Hawaii
Hawaii spans USDA zone 12a, 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 January 5 in Kapaa to January 5 in Kapaa — below are local dates for 1 cities, each computed from its own frost dates.
| City | Zone | Last frost | First frost | Direct sow |
|---|---|---|---|---|
| Kapaa | 12a | January 26 | January 24 | January 5 – February 9 |
Gai Lan (Chinese Broccoli) in Hawaii: FAQ
When can I plant gai lan (chinese broccoli) in Hawaii?
Across Hawaii, the time to direct-sow gai lan (chinese broccoli) spans roughly January 5 in Kapaa to January 5 in Kapaa, each following that city's local frost dates.
Does the gai lan (chinese broccoli) planting date vary across Hawaii?
Yes. Hawaii publishes 1 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 Hawaii?
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.
Never miss a window in your area
An email when it’s time to start seeds, transplant, and sow — timed to your frost dates. Double opt-in, one-click unsubscribe, no spam.