Watermelon has so much water in it already that it practically wants to become a summer drink. Turning it into a shrub gives you a bright, juicy concentrate that tastes fantastic with sparkling water and a squeeze of lime.This one feels the most festive of the bunch. It’s perfect for cookouts, late-afternoon porch time, and those moments when everyone else is opening a soda and you want something with that same fizz and fun, just a little fresher.