Tips for growing radishes: Thin radishes to about an inch apart when the plants are a week old. You’ll be amazed at the harvesttime results.
Radishes need sun. If they are planted in too much shade — or even where neighboring vegetable plants shade them — they put all their energy into producing larger leaves.
Wondering what to do with all those radishes you’ve grown? Slice them into a stir-fry, or store them in plastic bags in the refrigerator (first cut the tops off short, wash the radishes, and dry them thoroughly). One expert told us his mother-in-law’s favorite bedtime snack is sliced radishes on white bread. His grandmother likes radish sandwiches with peanut butter.
Plan on a fall planting. You can plant radishes later than any other root crop in late summer or early fall and still get a harvest.