What screams summer more than watermelon? This fruit is popular for good reason: a 2-cup serving of juicy diced bites is not only perfect for hydration but is also bursting with vitamin C. With 71% of watermelon purchased in the grocery store, independent grocers can use these five quick tips from the National Watermelon Promotion Board (NWPB) to establish their store as the spot to get the best watermelon this summer.