Pro-Tekt® The Silicon Solution (0-0-3) is a liquid supplement that supplies higher levels of potassium and silica to help plants build stronger cell walls. Stronger cell walls makes 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.