Stem Strength

Toughen up your grow! STEM STRENGTH is a potassium silicate supplement that provides the optimum level of silicon to strengthen cell walls, while at the same time ensuring that you do not suffer from excess potassium in your grow. It produces sturdy, resilient crops by incorporating Stem Strength into your growing regime. STEM Strengthsupplies silicon to build strength within the plant stem and leaf cell structure. Silicon is an extremely beneficial mine..

£9.95