Sow seeds directly in the soil. Outdoors from March under fleece, or under cover from mid February in rows 10-15cm apart. Useful for inter-cropping and catch-cropping or marking rows of slower germinating seeds.
Radishes (raphanus sativus) have been cultivated for about 4,000 years. The varieties grown today trace back to three separate domestications of wild radishes in Eurasia and Japan.