Similar to broccoli raab with a milder, sweeter flavor, Hon Tsai Tai produces tender purple stems with delicate leaves that are delicious raw or stir-fried. 200 Seeds Minimum Germination: 7-14 days Maturity: 40 days Direct sow deep in full sun 2-4 weeks before last frost date. Repeat in midsummer for an autumn harvest. Space plants 12-18 apart in rows 2 -3 apart.