
Bok Choy
Brassica rapa subsp. chinensis
Bok choy is a fast-growing Asian leafy green with crisp white stalks and tender dark leaves. A cool-season vegetable, it matures quickly and is widely grown in gardens.
- Light
- Full sun to part shade
- Water
- Consistent moisture
- Difficulty
- Easy
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Overview
Bok choy is a non-heading Chinese cabbage in the mustard family (Brassicaceae), grown for its succulent leaf stalks and smooth green leaves. Unlike heading cabbages, it forms an open, celery-like cluster.
It is a quick, cool-season crop that can be ready in as little as 30-45 days, making it ideal for spring and fall planting and for succession sowing.
How to identify it
An upright cluster of spoon-shaped leaves on thick, pale stalks.
- Leaves: Smooth, dark green, oval to spoon-shaped blades
- Stalks (petioles): Thick, crisp, juicy, ranging from bright white to pale green; forming a vase-like base
- Habit: Loose, non-heading rosette typically 6-12 in tall; baby types are smaller
- Flowers: Bright yellow, four-petaled (typical brassica) if the plant bolts in heat
- Note: Many cultivars exist, from full-size to compact "baby" bok choy
Care & growing
Light: Full sun in cool weather; partial shade helps in warmer conditions to delay bolting.
Water: Keep soil consistently moist — uneven watering causes stress and bolting.
Soil: Fertile, moisture-retentive, well-drained soil; pH 6.0-7.0.
Temperature: A cool-season crop preferring 55-70 F; heat triggers premature flowering.
Feeding: Light nitrogen feeding supports fast, tender leaf growth.
Propagation: From seed, sown directly or transplanted; sow in spring and late summer/fall to avoid midsummer heat.
Habitat & origin
Bok choy has been cultivated in China for over 1,500 years and is a fundamental East Asian crop. It spread throughout Southeast Asia and, more recently, to Western gardens and markets.
It grows best in cool, temperate growing seasons and is widely produced commercially in China and increasingly in North America and Europe as demand for Asian greens grows.
Frequently asked questions
Why did my bok choy bolt so fast?
Bok choy bolts (flowers prematurely) in response to heat and long days. Grow it in the cool of spring or fall, keep it well watered, and choose bolt-resistant varieties.
How long does bok choy take to grow?
Baby bok choy can be ready in about 30 days and full-size plants in 45-60 days, making it one of the fastest-growing leafy crops.
Does bok choy grow back after cutting?
If you cut the plant above its base, smaller specimens will often resprout fresh new leaves, giving a second flush of growth.
Bok Choy guides
In-depth guides for identifying, growing, and caring for Bok Choy.











