Vegetables Greens Asian Greens

Hon Tsai Tai
Asian Green Seed

Product ID: 138

Purple flower stems and buds.

A Chinese specialty also known as Kailaan. The young plants produce quantities of long, pencil-thin, red-purple, budded flower stems. Pleasing, mild mustard taste for use raw in salads or lightly cooked in stir-fries or soups. For multiple harvesting of tender stems and leaves. Can be spring sown, but yields best when sown June through October for harvest from midsummer through winter (in mild areas). Hand harvest 8–10" long shoots by snapping them. Shoots that do not easily snap are overmature. Avg. 11,700 seeds/oz. Packet: 250 seeds.


In Stock

1 Ounce

In Stock

1/4 Pound

In Stock

1 Pound

In Stock

5 Pounds

In Stock

25 Pounds

Backordered Until Dec 24, 2022
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CULTURE: Sow from early spring through midsummer. May be sown into late fall in mild climates or when overwintering in a high tunnel or other protected structure. For full-size bunching: sow 15 seeds/ft., 1/4" deep in rows 12-18" apart. Most varieties do not require thinning; see individual product descriptions for varieties that do. For baby-leaf production of 'Tokyo Bekana', which is the only "Asian green" we recommend for baby leaf, see the Baby Leaf Brassica Greens culture.
SUCCESSION PLANTING: Sowing every 7-10 days will provide a continuous harvest of both budding/cutting and heading types.
INSECT PESTS: Flea beetles are best controlled by covering with floating row covers from day of sowing.
HARVEST: Budding/cutting types (choi sum and kailaan): harvest when the buds are just mature, or a few are just blooming. Multiple harvests are possible for these types. Heading types (celtuce, Chinese cabbage, and komatsuna): may be harvested from medium to full-size, depending on local market preferences. These types are suitable for single harvests.
AVG. SEEDING RATE: For bunching: 1 oz./830', 1 lb./13,000' at above spacing.
SEED SPECS: SEEDS/OZ.: Avg. 12,650.
PACKET: 250 seeds unless otherwise noted, sows 16' full-size.

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Quick Facts


Latin Name

Brassica rapa

Days To Maturity

Average number of days from seeding date to harvest, within a specific crop group. If a transplanted crop: average number of days from transplant date. Not sure if crop is direct-seeded or transplanted? Check the Growing Information box for details. If crop can be both direct-seeded or transplanted, days to maturity refers to direct seeding. Days to maturity for all flowers and herbs is calculated from seeding date.

37 Days

Life Cycle

Plants can be Annuals (single growing season), Perennials (grow year after year), Tender Perennials (grow year after year in warmer climates; and in some cases when given special protection in colder climates), or Biennials (require two years to mature).


Hybrid Status

Hybrid: The offspring of a cross between two or more distinct parent lines, usually of same species, and selected for improved traits.
Open-pollinated: A non-hybrid variety that can reproduce itself in kind, demonstrating relatively stable traits from one generation to the next.

Open Pollinated