Planting - Radish will withstand rather cool weather. It can be planted in the early spring and throughout the summer in the mountains. In the Coastal Plain, radish can be planted from February to mid May and August to October. With 18 plants per ft in rows 9 inches apart, it will take 20-25 lb of seed per acre. For commercial plantings, it is best to get graded seed to ensure uniform emergence and growth.
Larger seeds germinate first and result in earlier marketable roots.
The larger winter varieties are spaced 2 to 4 inches apart in the row. The radish harvester lifts the entire plant, removes the top, and drops the root in a container. This means only one harvest per planting. Some small growers are still bunching radish for sale. The radishes are pulled and banded in the field.