Shanghai Pak Choi Heirloom Seeds

Shanghai Pak Choi is a compact Chinese cabbage heirloom prized for its tender pale green stems and smooth, dark green leaves. Mild, juicy, and quick to mature, it brings a buttery crunch to stir-fries, soups, and fresh garden meals. Open-pollinated and non-GMO, it is a dependable cool-season crop for spring and fall gardens.

History

Shanghai Pak Choi belongs to the long tradition of Asian greens grown for their fast growth, tender texture, and versatility in the kitchen. This Shanghai type is known for its softer green color, compact upright shape, and succulent stems that stay mild when harvested young. It is a practical heirloom for gardeners who want a generous harvest without giving up much bed space.

Plant Profile

• Days to Maturity: 45–55 days, with baby leaves ready earlier
• Head Size: 8–12 inches tall with pale green stems and dark green leaves
• Plant Size: About 8–12 inches tall and wide
• Plant Type: Cool-season leafy brassica grown as an annual

Flavor Profile

Shanghai Pak Choi has a mild, lightly sweet flavor with crisp, juicy stems and tender leaves. The stems hold their pleasant crunch when cooked, while the leaves soften quickly and absorb sauces, broth, garlic, and ginger beautifully. Young leaves are delicate enough for salads and fresh slaws.

When to Plant

Direct sow Shanghai Pak Choi in early spring 2–4 weeks before your last spring frost, or sow in late summer 6–8 weeks before your first expected fall frost. Cool weather helps the plants stay tender and reduces bolting. Aim for soil temperatures around 50–70°F, and provide afternoon shade if warm weather arrives early. Check your USDA Hardiness Zone to fine-tune your planting schedule.

Growing Tips & Planting Dimensions

• Spacing: Thin to 6–8 inches apart, with 12–18 inches between rows.
• Planting Depth: Cover seeds about 1/4 inch deep in fine, loose soil.
• Germination: Usually 5–10 days at 60–70°F.
• Sun: Full sun in cool weather; light afternoon shade helps in warmer conditions.
• Soil: Loose, fertile, well-drained soil rich in organic matter.
• Water: Keep soil evenly moist for crisp stems and steady growth.
• Succession sowing: Sow a short row every 2–3 weeks during cool weather for a continuous harvest.
• Healthy plants: Water at soil level, rotate brassica crops, and thin promptly for good airflow and strong growth.

🌱 Gentle Cover Germination 🌱

Into the surface — thin cover only, no light needed.

1. Start with the right foundation. Use a fine seed-starting mix — not garden soil or coarse potting mix. Sift it if needed. Small seeds need a smooth, even surface to make good contact and germinate reliably.
2. Cover lightly — just barely. Press seeds onto the moist surface and cover with no more than 1/8 inch of finely sifted mix. These seeds don’t need light to germinate but they don’t want to be buried either.
3. Mist, don’t drench. Use a spray bottle to keep the surface evenly moist. Watering from above can wash small seeds away before they ever get started.
4. Warmth is your friend. These seeds germinate best at 65–70°F — basically normal room temperature. A heat mat can help if your space runs cool.
5. Trap the humidity. Cover your tray with a humidity dome or a loose piece of plastic wrap. This keeps moisture and warmth stable while you wait.
6. Give them time. Keep conditions consistent, resist the urge to overwater, and trust the process — they will sprout.
7. Thin with scissors, not fingers. Once seedlings appear, snip extras at the soil line rather than pulling. These roots are close together and pulling one can disturb its neighbors.

Shanghai Pak Choi does not need cold stratification. For direct sowing, keep the seedbed evenly moist until seedlings emerge.

Growth Type & Harvest Yields

Shanghai Pak Choi forms a compact upright rosette of pale stems and dark green leaves. Harvest a few outside leaves for a cut-and-come-again supply, or let plants mature into full heads for a larger kitchen harvest. Succession sowing keeps new, tender greens coming through the cool season.

Knowing When to Harvest

Harvest baby leaves as soon as they are large enough to use, or cut full heads when the stems are plump, crisp, and the leaves are richly green. Pick before the center stalk stretches upward or flower buds appear, since cool-season greens are most tender before bolting. Cut the head just above the soil line and refrigerate promptly. Use within several days for the best texture.

Companion Plants & Mutual Benefits

• Peas: A cool-season pairing that makes efficient use of garden space.
• Carrots: A tidy root-crop neighbor with compatible moisture needs.
• Onions: Upright plants that fit neatly beside low, leafy pak choi.
• Dill: Helps attract beneficial insects to a diverse garden bed.
• Lettuce: A fast, low-growing companion for filling bed edges.

How to Enjoy

• Stir-fry stems and leaves with garlic, ginger, sesame, or soy.
• Steam whole heads until just tender and finish with toasted sesame oil.
• Add chopped pak choi to ramen, miso soup, and vegetable broth.
• Slice young leaves into salads, slaws, and fresh spring rolls.
• Roast halved heads for caramelized edges and tender centers.

Order Today

Grow a compact Asian green with crisp stems, tender leaves, and a generous cool-season harvest. Order Shanghai Pak Choi Heirloom Seeds today and bring fresh, garden-grown flavor to your stir-fries and soups.