... SuperThrive is a rooting aid, works well to help sprout cuttings ... it gets touted as a miracle ingredient, but it doesn't deserve all the praise it gets ... highly over-rated, and can be fatal to young seedlings, when used more than a drop or two, per gallon ... I have never seen one bit of difference when added to my plants, except when used to root cuttings in my bubble-cloner :jointsmile: