Gai Lan (Chinese Broccoli) in Zone 11a & 11b

Brassica oleracea var. alboglabra

When to plant gai lan (chinese broccoli) in zone 11b

Zones 11a and 11b share the same average frost dates in our data, so this page covers both.

Method: Direct sow: Direct-sow outside. Gai Lan (Chinese Broccoli) doesn't transplant well, or doesn't need the extra time indoors.

Start indoors	Not typically started indoors
Direct sow / transplant outside	Dec 18–Dec 25
Estimated harvest	Feb 1 '27–Feb 8 '27 (~45 days after direct-sowing)

Spacing: 4 per square foot (square-foot-gardening spacing). Mature height: 1-1.5 ft.

Gai lan, also called Chinese broccoli or kailaan, is grown for its thick, tender flowering stalks rather than a dense broccoli head, with a milder, slightly sweeter flavor than standard broccoli.

How gai lan (chinese broccoli) fits zone 11's season

Zone 11b is frost-free in this dataset, so frost is not what limits the calendar here. What you can plant, and when, comes down to summer heat and daylength instead.

Good companions

No standout companions recorded yet for Gai Lan (Chinese Broccoli).

Where to buy gai lan seeds

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