What it needs & gives back
↓ Needs
↑ Gives back
Companions
Common bean
Radishes can help break up heavy soil for beans.
Lettuce
Radishes grow quickly and are harvested before lettuce needs the space.
Cabbage
Can be grown together, but both are susceptible to similar pests.
Cucumber
Radishes can help loosen soil for cucumbers.
Hyssop
Hyssop is said to deter flea beetles.
Spinach
Can be intercropped; radishes break up soil for spinach roots.
Carrot
Radishes break up heavy soil, making it easier for carrots to grow.
Turnip
Radishes can be used as a trap crop for flea beetles, protecting turnips.
Endive
Benefits from being planted near radishes.
Chervil
Chervil is said to improve the flavor and growth of radishes.
Through the year
Emergence
Seeds germinate rapidly in cool soil temperatures.
Flowering
Flowers appear quickly after emergence, especially in warmer conditions or if left to bolt.
Fruiting
Seed pods develop soon after flowering.
Harvest
Roots are typically ready for harvest within 3-5 weeks of planting, depending on variety and conditions.
Senescence
Plants tend to bolt and senesce in longer, warmer days.
Timing is relative to your local season (temperate Northern Hemisphere).