Brassica rapa pekinensis Seeds | Chinese Cabbage

Chinese Cabbage (Brassica rapa pekinensis) — Chinese Cabbage (*Brassica rapa pekinensis*): Brassicaeae, native to Bred in the Yangtze and Huai river valleys of eastern China, now grown across cool temperate Asia.

LATIN NAME: Brassica rapa pekinensis

COMMON NAME: Chinese Cabbage

Plant Profile

Chinese cabbage forms an upright, cylindrical head rather than the round ball of a Western cabbage, and the Michihli type takes that shape to its limit with a long, tapering heart that can stand half a metre tall in the row. The outer leaves stay open and leafy while the inner leaves blanch to cream and fold into the tight core, which is the part the cook values most.

The leaf is broad and paddle-shaped with a thick, crunchy white midrib and a mild, almost sweet blade, a build that suits both raw salad and long braise. The midrib is the crunch in the stir-fry and the spine in the pickle, and the pale colour comes from the leaves wrapping so tightly that light never reaches the heart.

The Michihli heart also braises whole in a little stock, because the long leaf wraps the core so tightly that it holds together in the pan and comes out silky rather than collapsed. A single small head fed a family through a winter, which is why the crop spread from the Yangtze delta across the cool parts of the continent as a storage vegetable.

In the cold north, the whole autumn crop is salted and buried in crocks to feed a household through winter, and the Michihli type’s long heart packs tightly into the jar. That ferment is older than the grocery aisle and is still the reason most of the world’s Chinese cabbage is grown.

Science & Biotechnology

Like every brassica, the plant carries glucosinolates that break down to mustard-oil compounds when the leaf is cut or chewed, but in Chinese cabbage the load is low, which is why the flavour stays mild next to a radish or a mustard green. The main ones here are glucobrassicin and a little gluconapin, enough to give a peppery edge without heat.

When the leaf is chopped, the enzyme myrosinase meets the glucosinolates and forms sulforaphane, the isothiocyanate that has drawn so much research attention across the cabbage family. The reaction is why a freshly cut slaw carries more of the compound than a cooked one, where heat has already spent the enzyme.

Uses & Benefits

Michihli is the group name for the long, narrow Chinese cabbages, distinct from the squat, bar-rel type sold as napa in some markets, and it is the form that travellers met along the canals of the Yangtze delta. The name travels with the seed, so a packet marked Michihli should give a tall, tapering head rather than a round one.

The head is the backbone of kimchi, the fermented Korean side dish built on salted napa leaves, chilli, and garlic, and it also stir-fries in minutes and picks in a jar within a short cool rest. The mild leaf takes a dressing or a sauce without fighting it, which is the secret of its reach across Asian kitchens.

Growing from Seed

Chinese cabbage is a cool-season crop that bolts in heat, so sow into cooling soil as the long days shorten, and keep the bed moist so the head fills instead of rushing to flower. A late-summer sowing gives the autumn head that stores best through the cold months.

Give the row steady water as the heart wraps, because a dry spell at that stage is what splits the head and invites rot at the centre, the fault that ruins an otherwise good crop. A mulch of straw keeps the soil cool and even, which is the low-tech trick that turns a nervous cabbage into a solid one.

Sow in shallow drills and thin the seedlings first at the first true pair, then again at four true leaves, to about thirty centimetres apart so each heart has room to wrap. Work by true-leaf number, not by a count of weeks, because a cool autumn and a warm one size the plant differently at the same date.

If you start modules, move the young plants when the rosette spreads to about ten centimetres across, and water them in so they do not check, because a checked cabbage bolts and never heads. A spread rule beats a date rule when the weather swings.

Our Take

I sow Chinese cabbage as the heat breaks and eat the thinnings as greens while the hearts fill, which spreads the harvest over weeks. It grows well beside Rapini seed Brassica rapa and Brassica juncea seed, with Broccoli seed and Rapeseed seed Brassica napus as brassica-bed neighbours.

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