When should radishes be harvested?

Question:

When should radishes be harvested?

Answer:

Radishes can be harvested 3 to 5 weeks after planting.  Periodically check their development by pulling one or two plants as they approach maturity.  Harvest radishes when roots reach useable size (about 1 inch in diameter).  Radishes can be stored in the refrigerator for 2 to 3 weeks.  Prior to storage, cut off the foliage to within ½ inch of the roots.  Radishes get pithy and hot when harvested too late.

Learn more about growing radishes in this article: Growing Radishes in Iowa