Pro-Tekt the silicon solution liquid supplement supplies higher levels of potassium and silicon to help plants build stronger cell walls. Stronger cell walls amkes a plant less susceptible to piercing sucking insects and invading fungi. Additional benefits include increased stem strength and leaf positioning of plants, which improves photosynthesis, increased heat, drought and cold tolerance, plus longer lasting leaves and blooms. Pro-Tekt can be used with any fertilizer. Recommended for all plants.