Natural, untreated and GMO-free seeds. Open pollinated seeds.
In fact, this selection is an improvement on the standard “French breakfast” radish variety.
Fast-growing radishes tend to ripen all at once, so sow small quantities every 2-3 weeks from early spring to late summer for a continuous harvest. Rake your soil to remove stones and clods and create a shallow trench ½ in (1 cm) deep with a cane.
Sow seeds thinly at 1 in (2.5 cm) intervals along the row to reduce the need for thinning later; cover them with soil and water well. Space rows 6 in (15 cm) apart. Make summer sowing seeds in light shade to help prevent plants from going to seed (bolting). Radishes can also be sown in large pots, with seeds spaced 1 in (2.5 cm) apart.
Seedlings grow very quickly and must be thinned to 1 in (2.5 cm) quickly to avoid stunting their growth. Thinning radish seedlings helps ensure that the radishes you harvest are plump and juicy. Water radishes in the ground abundantly once a week in dry weather and those in pots every day to prevent them from going to seed and keep the roots succulent. Grow under a protective, insect exclusion net to avoid problems with flea beetles.