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When to Plant Choy Sum in Hawaii

Hawaii doesn't get a seasonal frost, so choy sum plants on a warm/cool-season calendar rather than frost dates. See the full calendar below.

Choy Sum planting calendar for Hawaii

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Best planting window

Cool season (≈ Sep–Feb)

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Time to harvest

~45 days

🌴 Your zone never frosts, so planting is timed to the cooler vs. warmer seasons rather than a frost date.

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🌿 Planting windowTodayHonolulu, HI: frost-free; timed to seasons, not frost

Choy Sum is ready to harvest in about 45 days. Set your ZIP in HomeSown for dates tuned to your exact location.

Varieties to grow

1 variety of choy sum in the HomeSown library. Tap any for its full grow guide.

Common problems with choy sum

What to watch for, with identification and treatment for each

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choy sum — full zone guide