VegetableCabbage
Joi Choi Cabbage
Joi Choi is a hybrid pak choi that delivers speed and reliability in 40 to 49 days, making it a standout choice for gardeners who want fast results without sacrificing quality. This vigorous grower reaches 18 to 20 inches tall at maturity, displaying the classic pak choi silhouette with bright green leaves and crisp white petioles that catch the light in the garden. Hardy from zones 2 through 10, it thrives in both warm and cool seasons, giving you flexibility across the growing calendar. What truly matters about Joi Choi is its reputation among growers for exceptional uniformity and its proven ability to resist the bolting that often frustrates pak choi gardeners, making it a reliable performer whether you're harvesting full-sized heads or picking young, tender leaves.
Photo © True Leaf Market
Growing Conditions
USDA Zone
2-10
Sunlight
Full Sun
Water
Moderate
Soil
Well-drained Loam, Tolerates Poor Soils
Growth Stats
20 in
Height
TypeUpright
Spacing
18
Plant Profile
Sunlight
Full Sun
Water
Moderate
Zones
2-10
Size
20in H x ?in W
Growth
—
Care
High
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Highlights
Joi Choi stands out for its vigorous, uniform growth and remarkable speed to maturity. Growers consistently praise its large size despite the quick 40 to 49-day timeline, and its bright green foliage with contrasting white stems creates visual appeal in the garden and on the plate. The hybrid's most valuable trait for most gardeners is its documented resistance to bolting, a common headache with pak choi in transitional seasons, which makes Joi Choi a genuinely practical choice rather than just another fast-growing brassica.
Common Uses
As a pak choi, Joi Choi is used fresh in stir-fries, where its tender leaves and crisp petioles deliver excellent texture when cooked quickly over high heat. The young plants can be harvested at smaller sizes for salads and sautés, while mature heads work beautifully in soups, braised dishes, and as a cooked green. Its speed and reliability make it a natural choice for succession planting, allowing home gardeners to maintain a steady supply throughout the season.
Growing Timeline
No timeline data available yet for this variety.
Care Instructions
Direct Sow
Direct sow seeds into the garden in spring after the last frost, and again in late summer for a fall crop. In zones 2 through 10, you have flexibility to plant as soon as soil can be worked in spring or to start fall plantings 50 to 60 days before your first expected frost.
Harvesting
Joi Choi can be harvested as young, tender plants when still small, or left to reach full maturity at 18 to 20 inches tall, giving you harvest flexibility based on your preferences and recipe needs. At maturity (40 to 49 days from sowing), the plant will show a full, upright head with bright green leaves and firm white petioles. For full heads, cut at the base with a sharp knife once plants reach desired size. For continued harvests, you can also pick outer leaves as needed, leaving the center to continue growing.
Growing Calendar
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Companion Planting
Ecology & Traits
Edible
Scientific Classification
Brassica rapa var chinensis
Family
Brassicaceae
Genus
Brassica
Growth Habit
Upright
Native Status
L48 (I)AK (I)HI (I)CAN (I)GL (I)