Gai lan
A leafy vegetable with thick stems and small florets.
Gai lan, also called Chinese broccoli or Chinese kale, is a leafy green from the species *Brassica oleracea*. Its scientific variety name is *alboglabra*, which comes from Latin for "white" and "hairless." The plant has thick, flat, glossy leaves that are blue-green, along with thick stems and small florets that look like miniature broccoli heads. If it flowers, it produces white blossoms similar to those of hoary stock, a relative. Its taste is like broccoli but stronger and a bit more bitter.
This vegetable grows best in cool weather, with an ideal temperature range between 18 and 28 °C. It handles hot summer conditions better than other brassicas such as cabbage or broccoli. Gai lan is usually ready to harvest about 60 to 70 days after planting, just before the flowers open. If the plant bolts, the stems can become tough and woody. For market, it is typically cut when 15 to 20 cm tall, but it can also be grown as "baby gai lan" by crowding seedlings and using heavy fertilizer; this version looks like Brussels sprouts but with looser leaves.
A hybrid called broccolini comes from crossing broccoli with gai lan.
In cooking, both the stems and leaves are common in Chinese cuisine, often stir-fried with ginger and garlic, or boiled or steamed and served with oyster sauce. It also appears in Vietnamese, Burmese, and Thai dishes. In Chinese restaurants, especially dim sum places, it is a frequent ingredient. In Americanized Chinese food, such as beef and broccoli, gai lan was often swapped for regular broccoli when the original was unavailable.
- type
- Leafy vegetable
- scientific_name
- Brassica oleracea var. alboglabra
- group
- Alboglabra
- flavor
- Similar to broccoli, stronger and slightly more bitter
- harvest_time
- 60–70 days after sowing
- optimal_temperature
- 18–28 °C (64–82 °F)
- common_uses
- Chinese, Vietnamese, Burmese, Thai cuisine
Lore & Background
Gai lan is a cool season crop that grows best between 18 and 28 °C (64 and 82 °F). It withstands hotter summer temperatures better than other brassicas such as broccoli or cabbage. It is harvested around 60–70 days after sowing, just before the flowers start to bloom, and the stems can become woody and tough when the plant bolts. It is generally harvested for market when 15–20 cm (6–8 in) tall, but can also be produced as 'baby gai lan' through crowding of seedlings and generous fertilization, which resembles Brussels sprouts although with looser folds.
Broccolini is a hybrid between broccoli and gai lan. The stems and leaves of gai lan are eaten widely in Chinese cuisine, with common preparations including stir-fried with ginger and garlic, or boiled or steamed and served with oyster sauce. It is also common in Vietnamese, Burmese, and Thai cuisine, and in Chinese cuisine it is often associated with dim sum restaurants. In Americanized Chinese food, such as beef and broccoli, gai lan was frequently replaced by broccoli when gai lan was not available.
Reader's Guide
Gai lan is significant as a staple leafy vegetable in Chinese cuisine and other Asian culinary traditions, valued for its thick stems and slightly bitter flavor similar to but stronger than broccoli. Its cultivation as a cool season crop that tolerates heat better than other brassicas makes it a versatile ingredient. The development of broccolini as a hybrid between broccoli and gai lan highlights its role in modern vegetable breeding. In Americanized Chinese food, gai lan was often substituted with broccoli when unavailable, reflecting its cultural importance and the adaptation of traditional dishes. Its legacy includes widespread use in dim sum restaurants and home cooking across multiple Asian cuisines, and its 'baby' version offers a different texture and presentation. The plant's white blossoms and classification within the alboglabra group further distinguish it among Brassica oleracea cultivars.
Did You Know?
- Gai lan is in the group alboglabra, from Latin albus 'white' and glabrus 'hairless.'
- When gone to flower, its white blossoms resemble those of its cousin Matthiola incana or hoary stock.
- Broccolini is a hybrid between broccoli and gai lan.
- In Americanized Chinese food like beef and broccoli, gai lan was frequently replaced by broccoli when not available.
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