
Bok Choy
Brassica rapa subsp. chinensis
Basic Information
πΏ Family: BrassicaceaeπΊοΈ Zone: 2-11
Other Names:
- Pak Choi
- Chinese Cabbage
π‘οΈ Ideal Temperature : 45Β°F β 75Β°F
π₯ Heat Tolerance: Up to 95Β°F
βοΈ Cold Tolerance: Down to 25Β°F
π± Type: Annual
Layers
- Herbaceous
Description
Bok Choy (Brassica rapa subsp. chinensis) is a fast-growing, cool-season leafy green vegetable commonly used in Asian cuisine. It forms loose, upright rosettes with dark green, tender leaves and thick, crunchy white stems. Depending on the variety, it can grow between 15β45 cm (6β18 inches) in height.
Bok Choy thrives in well-drained, fertile soil and is best grown in spring and fall to avoid bolting in hot weather. It is highly nutritious, rich in vitamins A, C, and K, and is a good source of calcium and antioxidants. The plant is commonly grown in vegetable gardens, raised beds, and containers.
ππ§ Sun and Water Requirements:
- Prefers full sun but tolerates partial shade.
- Requires well-drained, nutrient-rich soil with consistent moisture.
- Needs regular watering; avoid water stress to prevent premature bolting.
βοΈπ« Methods to Propagate:
- Seeds: Direct sow in early spring or late summer for fall crops.
- Transplants: Start seeds indoors 4β6 weeks before the last frost and transplant outdoors when seedlings are 10 cm (4 inches) tall.
- Regrowing: Can be regrown from cut bases placed in water until roots develop.
π§βπΎπ©βπΎ When to Harvest:
- Baby Bok Choy can be harvested as early as 30 days after planting.
- Full-size plants are ready in 45β60 days.
- Outer leaves can be harvested individually, or the entire plant can be cut at the base.
Purpose
Bok Choy serves multiple functions in a permaculture system:
- Edible: Leaves and stems are used in stir-fries, soups, salads, and steamed dishes.
- Medicinal: High in antioxidants, supports bone health, and has anti-inflammatory properties.
- Wildlife Attractor: Flowers attract pollinators such as bees and butterflies.
- Mulcher: Leaves decompose quickly, enriching soil with organic matter.
- Dynamic Accumulator: Draws up essential nutrients like calcium and potassium, improving soil health.
- Border Plant: Works well in mixed vegetable beds and garden borders.