Microgreens are defined as bigger than seedlings but not full-grown plants. Microgreens include the first couple of leaves out of the ground and the next set of leaves produced after that. From seed to microgreen, it only takes a week to two! In this tiny form, their leaves are so superdense with vitamins and antioxidants that, with some varieties, they can surpass their adult form by up to 40 times in nutrition!