Some Asian vegetables that can be grown from seeds are bok choy and daikon radish. Bok choy, a green, leafy vegetable used in stir-fries, should be planted as seeds and not transplanted. This keeps the plant, which is a type of cabbage, from bolting.
Bok choy is planted in rows that are 24 inches apart, with the plants about 3 or 4 inches apart. It prefers rich soil enhanced with compost such as chicken manure, with a pH that ranges from somewhat acidic to neutral. The plants should only have between six and 12 hours of direct sunlight per day, again to prevent bolting. Shading is used to prevent the plants from getting too much light. The soil should be watered enough to keep it from drying out, but not so much as to keep it damp.
The seed of the daikon radish, which is often pickled in Japan, is planted in the fall. The seeds are planted at a depth of about 3/4 of an inch in rows that are 3 feet apart. The plants should be between 4 and 6 inches apart. They do best in raised beds, in rich soil enhanced by compost. The soil is mounded around the radish as it grows, and it is ready for cultivation in around 60 to 70 days.