Vegetative & Bloom Set (A&B)Your full set of necessary nutrients that optimize the growth of plants and maximize quality through both the vegetative and bloom stages. No need for CalMag or Bud Booster products when you use rhize nutrients. ***Our Vegetative recipes are used when your plants are growing only leaves, stems and roots, and then you should begin to feed our Bloom recipes when your plant begins to grow its fruit or flowers***