How do you tell when a radish is ready to pick???

Question:Well see i have a small row of radishes in my garden and I have no idea how to tell when there ready to pick!
please help!!

Answers:
As they get bigger you will see the red protruding from the soil usually. Don't worry you'll be a pro soon. You can re-plant them every two weeks for a continuous supply. Just pick 1/6 of the row for two weeks then reseed the empty spots.
You can do the same with leaf lettuce if you are growing it, and green onions, make great salads or just snacks. Happy Gardening.