Sow
0.39 inches (1.0 cm) deep with a guideline distance of
9.75 inches (25.0 cm). Soil temperature should be kept higher than
18°C / 64°F to ensure good germination.
By our calculations, you should look at sowing Shanghai Pai Tsai about 14 days before your last frost date.
As Shanghai Pai Tsai is tender, ensure temperatures are mild enough to plant out - wait until after your last frost date to be on the safe side.