Power Si Start 2lb is an all-natural microbial inoculant designed to boost early-stage plant development by enhancing root growth and soil biology. With four species of concentrated endomycorrhizae and nitrogen-fixing bacteria, it works to unlock nutrients in the soil and convert nitrogen into plant-available forms. This size is ideal for mid-sized growers or those who need more than a small jar but don't require commercial bulk. Use during transplanting, early vegetative growth, or seed starting to reduce transplant shock, accelerate root formation, and build a healthier, more resilient plant from day one.Safe for all crops and fully compatible with any growing system or nutrient program.