Try to aim for a seed spacing of at least
5.94 inches (15.24 cm) and sow at a depth of around
0.5 inches (1.27 cm). Soil temperature should be kept higher than
18°C / 64°F to ensure good germination.
By our calculations, you should look at sowing Ching-Chiang about 14 days before your last frost date.
Ensure that temperatures are mild and all chance of frost has passed before planting out, as Ching-Chiang is a hardy plant.
Ching-Chang, Ching Chaing