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Gai lan

Gai lan, also known as Chinese broccoli or Chinese kale, is a leafy vegetable in the species *Brassica oleracea* var.

By Ethan Anderson| Reviewed by Olivia Bennett, Standards & Fact-Checking Lead| Updated September 11, 2026|2 min read| Fact-checked

Gai lan, also known as Chinese broccoli or Chinese kale, is a leafy vegetable in the species Brassica oleracea var. alboglabra. It is grown for its edible leaves, stems, flower buds and flowers, and is widely used in East and Southeast Asian cuisine. In Canada, it is commonly sold in grocery stores and Asian markets.

Description

Gai lan is a leafy brassica with waxy blue-green leaves, thick stems and small broccoli-like flower buds. Compared with common broccoli, it is usually harvested as individual stems rather than a single head. The whole above-ground plant is edible, including the leaves, stems, flower buds and flowers.

Names and taxonomy

The plant is known by several names, including gai lan, kai-lan, Chinese broccoli, Chinese kale and jie lan. Its scientific name is Brassica oleracea var. alboglabra. It is a cultivar or variety of the species Brassica oleracea, which also includes common broccoli, cabbage, and kale.

Cultivation and harvest

Gai lan is grown as a cool-season vegetable and is typically ready for harvest within about 6 to 10 weeks in garden settings and commercial production. It is usually picked before flowering is fully underway, as the flower buds are also edible and the plant is often harvested as individual stems. The crop is commonly grown in Canada and other temperate regions.

Culinary use

The vegetable is valued for its slightly bitter, crisp stems and tender leaves. It is commonly stir-fried, steamed or sautéed, and the buds and flowers are also eaten. Gai lan is especially associated with Cantonese and broader East and Southeast Asian cooking, and is frequently used in stir-fries alongside other ingredients.

Key facts

  • Gai lan is a cultivar of Brassica oleracea with thick, glossy blue-green leaves and thick stems.
  • It is commonly called Chinese broccoli or Chinese kale in English.
  • The whole above-ground plant is edible, including leaves, stems, flower buds and flowers.
  • It is especially associated with Cantonese and broader East and Southeast Asian cooking.
  • The plant is a cool-season crop and is often harvested before the flowers fully open.
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Canadian context

Gai lan is widely sold in Canadian grocery stores and Asian markets and is a common vegetable in Chinese and other East and Southeast Asian cuisines.

Frequently asked questions

What is gai lan?
Gai lan is a leafy vegetable in the cabbage family, scientifically classified as Brassica oleracea var. alboglabra.
Is gai lan the same as Chinese broccoli?
Yes. Chinese broccoli is one of the most common English names for gai lan.
What parts of gai lan are edible?
The leaves, stems, flower buds and flowers are edible.
What does gai lan taste like?
It is generally described as mildly bitter or slightly sweet, with crunchy stems and a broccoli-like flavour.
How is gai lan usually cooked?
It is commonly stir-fried, steamed or quickly sautéed.

References

  1. Wikipediahttps://en.wikipedia.org/wiki/Gai_lan
    Supports: Common names, scientific name, physical description
  2. West Coast Seedshttps://www.westcoastseeds.com/blogs/wcs-academy/how-to-grow-gai-lan
    Supports: Botanical classification and growing information
  3. NSW Department of Primary Industrieshttps://www.dpi.nsw.gov.au/agriculture/horticulture/vegetables/commodity-growing-guides/asian-vegetables/g-l/gai-lan-embrassica-oleracea-var.-alboglabraem
    Supports: Edible parts, appearance, culinary use, harvest and botanical relationships
  4. Royal Horticultural Societyhttps://www.rhs.org.uk/vegetables/chinese-broccoli/grow-your-own
    Supports: Names, edible parts, and cooking uses
  5. Specialty Producehttps://www.specialtyproduce.com/produce/Gai_Lan_467.php
    Supports: Names, origin, uses, and general description
  6. Dakota Master Gardenershttps://www.dakotamastergardeners.org/edible/gai-lan:-the-versatile-chinese-broccoli
    Supports: Description, edible parts, flavour and culinary use