Cutting Edge Solutions Uncle John's Blend, 15 GallonKeep Your Plant Striving For New Heights Cutting Edge Solutions' Uncle John's Blend is a complex Potassium formula that is used primarily to enhance a plant's metabolic rate, especially for flowering plants during the blooming stage. Potassium is a major component in photosynthetic processes, including the production of ATP (plant sugars) and the transfer of those sugars throughout the plant tissue. Potassium also helps regulate C02 uptake, as well as