Looking for a two part base nutrient system that's easy to use and produces amazing results? Check out Cali Pro line from Emerald Harvest! Cali Pro Bloom A and B is the second step in the two step process, to be used during the flowering stage of your plant's growth cycle. This formula was specially engineered for your high-yield plants, Cali Pro Bloom A and B is nitrogen rich, and contains all the essential elements guaranteed to boost your plant's flowering potential. Main ingredients include: phosphorous, potassium, as well as trace elements and micronutrients. To use Cali Pro Bloom A and B, just add equal parts A and B to your plants during the flowering stage. To ensure your plants have stalks and stems strong enough to support this robust flowering stage, make sure you're using Cali Pro Grow A and B as well.