Brassica rapa chinensis. Mild green leaves are supported by thick, sweet, white stalks that are mild and juicy. In summer, plant Taiwan... Read More
Seed type OP ?
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Brassica rapa chinensis. Mild green leaves are supported by thick, sweet, white stalks that are mild and juicy. In summer, plant Taiwan pac choi seeds in short rows and harvest promptly before it bolts. Plant again at the end of summer for fall and early winter harvests. Taiwan pac choi seeds do not need warm soil to germinate, and they will grow (albeit slowly) into winter if given some frost protection. Try growing it under a cloche tunnel or cold frame and harvest until about December. Then start new rows around the end of February. Taiwan pac choi is great raw or cooked in stir-fries and soups.
Matures in 35-45 days. (Open-pollinated seeds)
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Latin
Latin
Brassica rapa chinensis
Family: Brassicaceae
Difficulty
Difficulty
Easy
We Recommend
We Recommend: Mei Qing Choi (MU553). For growers particularly, this hybrid variety is surprisingly uniform in timing and growth. The plants are beautiful and upright with crisp stems and very good flavour. It works well in the home garden, but sow short rows repeatedly, or you’ll be overwhelmed by it all coming at once.
For Urban Gardeners: Toy Choi (MU522) works very well in containers and raised beds. It’s compact to the point of being cute, but tastes wonderful raw or cooked. Very nice, crunchy, succulent stems.
Season & Zone
Season & Zone
Season: Cool season
Exposure: Full sun to partial shade
Timing
Timing
All are cool season plants that grow quickly and then bolt. Direct sow with frost protection (a cloche or heavy row cover) as early as late winter, or without protection from four weeks before the last frost date to eight weeks after. Sowing short rows every 2-3 weeks allows for a fairly constant harvest time. Sow again in late summer, and provide frost protection as the first frost date approaches.
Starting
Starting
Sow 3-4 seeds 5mm-1cm (¼-½”) deep in each spot you want a plant to grow. Thin to the strongest plant at a spacing of 15-20cm (6-6″) between plants in rows 30-45cm (12-18″) apart.
Days to maturity
Days to maturity: From direct sowing.
Growing
Growing
Ideal pH: 6.0-6.8. 1 cup of complete organic fertilizer will provide sufficient nutrition to 3m (10′) of row. Choi Sum is harvested just before it flowers, so keep a close watch on each row. Pac Choi can be harvested at any stage, but if you want full-sized plants, watch for signs of bolting. Flower buds will appear at the centre of each plant, and a stem will form quickly as the plant turns from urn-shaped into a tall cone. Harvest as quickly as possible once flower buds are visible. Keep plants well-watered throughout their growth.
Harvest
Harvest
Use a sharp knife to cut the plants at ground level when they are ready to harvest. They will not grow back like some other crops, so plant several short rows every couple of weeks for a longer harvest.
Seed Info
Seed Info
In optimal conditions at least 70% of seeds will germinate. Usual seed life: 3 years. Per 100′ row: 260 seeds, per acre: 114M seeds.
Diseases & Pests
Diseases & Pests
Slugs and woodlice (sow bugs) may nibble young seedlings. Keep the garden free from debris and excess water, where both of these pests like to go during the day. Protect plants from flea beetles and cabbage moths with lightweight row cover.
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All are cool season plants that grow quickly and then bolt. Direct sow with frost protection (a cloche or heavy row cover) as early as late winter, or without protection from four weeks before the last frost date to eight weeks after. Sowing short rows every 2-3 weeks allows for a fairly constant harvest time. Sow again in late summer, and provide frost protection as the first frost date approaches.
Sow 3-4 seeds 5mm-1cm (¼-½”) deep in each spot you want a plant to grow. Thin to the strongest plant at a spacing of 15-20cm (6-6″) between plants in rows 30-45cm (12-18″) apart.
Ideal pH: 6.0-6.8.
1 cup of complete organic fertilizer will provide sufficient nutrition to 3m (10′) of row. Choi Sum is harvested just before it flowers, so keep a close watch on each row. Pac Choi can be harvested at any stage, but if you want full-sized plants, watch for signs of bolting. Flower buds will appear at the centre of each plant, and a stem will form quickly as the plant turns from urn-shaped into a tall cone. Harvest as quickly as possible once flower buds are visible. Keep plants well-watered throughout their growth.
Days to maturity: From direct sowing.
In optimal conditions at least 70% of seeds will germinate. Usual seed life: 3 years. Per 100′ row: 260 seeds, per acre: 114M seeds.
Use a sharp knife to cut the plants at ground level when they are ready to harvest. They will not grow back like some other crops, so plant several short rows every couple of weeks for a longer harvest.
