Humboldt Master B 1qt
Humboldt Master B 1qt 1-5-6
Humboldt Nutrients Master A&B is a premium two-part fertilizer program designed for all plants made with non-toxic, high quality ingredients. Humboldt Nutrients has formulated this vigorous 2-part nutrient solution for use on any plant, in any growing medium and contains no EDTA’s. The Humboldt Nutrients team of chemists and agronomists emphasize balance and consistency with all our formulas. Master A and Master B are formulated to provide your favorite plants with higher absorption of nutrients, vitamins, minerals and trace elements.