Keep in mind when planting that China Choy is thought of as hardy, so this plant will survive close to or on freezing temperatures.
Ensure a seed sowing distance of
7.8 inches (20.0 cm).
By our calculations, you should look at sowing China Choy about 42 days before your last frost date.
Ensure that temperatures are mild and all chance of frost has passed before planting out, as China Choy is a hardy plant.