Browse Hormex products for industry leading vitamin & hormone concentrates for your plants. Hormex’s perfectly formulated Rooting Powder makes it easy to root difficult to propagate plants, consistently producing stronger and more uniform root growth. Hormex Rooting Powder and Root Growth Stimulators have been used by professional growers for over 50 years! HTG Supply offers only the best nutrients from the industry’s top brands. Shop Hormex today for hydroponic and aeroponic solutions to suit your specific needs!