Mei Qing ChoiBrassica rapa chinensis.Pronounced "may-ching-choi." This hybrid Shanghai pac choi is tender, sweet, and crunchy. Short, compact plants are slow to bolt, but also cold-tolerant, for surprisingly long harvest periods. Mei Qing Choi pac choi seeds grow uniformly, with pale green petioles, and lovely, rounded, flat leaves. Perfect for early spring to late fall, and will overwinter with some protection. The secret to success with pac choi is to monitor your crop closely, because the plants can "bolt." This means that at a certain point in its growth season, the plant will send up a flower stock in order for pollination and seed production. This process is incredibly fast with pac choi plants, and can take only two days. Once the flowering process begins, the leaves lose much of their appealing taste and texture. It's best to sow numerous short rows of pac choi at two week intervals, so the whole crop does not mature all at once. Matures in 40 days.(Hybrid seeds)
Yu Tsai SumBrassica rapa var. chinensis.Yu Tsai Sum is a type of choi sum. This summer crop is also known as Yu Choi. Grown for tender flower bud stalks (yellow flowers) and glossy, bright green leaves, it is mild and sweet when cooked briefly. Stems will be 0.5-1cm (.25") thick if grown and watered well. This variety was tops in our trials for both taste and texture. For large plants, sow in rows 30-45cm (12-18") apart. Cut the flower bud stalk with a few leaves - new shoots will grow from a leaf axil. Plant Yu Tsai Sum seeds in early summer, up to 6 weeks before frost. Early spring plantings may bolt. Matures in 40-60 days.(Open-pollinated seeds)
Jade SpringBrassica rapa var. chinensis.Jade Spring choi sum seeds produce a short season, fast-growing hybrid variety of Yu Tsai Sum (or Choi Sum) that produces raw stems with the texture of lightly steamed asparagus, with a sweet, mild taste. Stems will be 5mm - 1cm thick if grown and watered well. Early spring plantings may bolt. The incredible flavour will have you eating it raw, straight out of the garden, before it can be cut for stir-fries, salads, or soups. The plants in our trials have been consistently uniform and show few signs of damage from pests or disease. Matures in 35-45 days.(Hybrid seeds)
How to Grow
300 seed/gram. Sow seed indoors in a soil-less mix 5 weeks before last frost date. Sow seed 6 mm (1/4″) deep and keep at 20 C (70 F) for the 7-10 day germination period. Grow on at a slightly cooler temperature then harden off and plant outside in late May. Space plants 45 cm (18″) apart in rows with the rows 75 cm (30″) apart.