Bio Harvest Bio Stimulant is a 100% natural root growth promoter, that is packed full of beneficial bacteria. These bacteria will aid roots to develop fast any also help produce a much healthy plant. Bio Harvest Bio Stimulant is a dry water soluble powder that can be used with any brand of nutrients, we recommend mixing bio stimulant in a small amount of warm water and then add to your main supply. Bio Harvest Bio Stimulant is also suitable for organic growing.