Gai Lan (Chinese Broccoli) in Zone 10a & 10b

Brassica oleracea var. alboglabra

When to plant gai lan (chinese broccoli) in zone 10b

Zones 10a and 10b 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	Jan 16–Jan 23
Estimated harvest	Mar 2–Mar 9 (~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 10's season

Zone 10b's frost-free window runs about 324 days, from January 30 to December 20. Gai Lan (Chinese Broccoli) needs about 45 days from sowing to first harvest.

Good companions

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

Where to buy gai lan seeds

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