Seaweed (specifically kelp varieties) is a naturally occurring, nutrient-rich algae containing amino acids. Nutrients found in this extract include potassium, calcium, magnesium and many trace elements. Powders and extracts from seaweed are often used as garden supplements to improve overall growth and plant health.
Chemical symbol: Si Silica (referred to in its elemental form as silicon) is a nonessential trace element. It helps plants create stronger plant cell structures that better support heavy fruits and flowers. It also helps your crops resist environmental stresses, pests and diseases.