The large Daikon and Watermelon radishes grow best in the fall, so we distinguish them from the more commonly known spring radishes that are smaller. They are also known as "winter radishes", and they store well throughout the winter. Daikon means "large root" in Japanese, and is used in asian dishes raw, pickled, or cooked. Watermelon radish is a type of daikon that has a sweeter, pink flesh. Slice it in half and then into 1/4" slices to make little watermelon-shaped slices for a fun snack.
Want to learn more? Look up Fall Radish on Wikipedia.
STORE: In the fridge. Keep in a plastic bag or sealed container for maximum freshness.