P-S

Roots Organics HPK liquid bloom booster features a combination of seabird guano, an unparalleled source of available natural phosphorus, phosphate rock, and langbeinite, a natural source of potassium that is carefully mined from ancient sea beds in the...

Resinator is a revolutionary flower enhancer that will dramatically increase essential oil production and flower mass when compared to products low in P and K by providing the highest-quality soluble phosphorus and potassium for translocation to...