I've used blackstrap, non-sulfured, molasses in both soil and hydro ... I'm convinced it made for denser, heavier buds, a difference that was easy to see, and feel ... I pretty much start using it about a week before the switch to flowering, and then, right up until a week before the final flush ... I haven't used it outdoors, yet, but I am curious, if it may attract insects ... I don't recommend applying it foliarly, though (sticky, may attract bugs, block pores) ... I haven't found dosage to be critical, at all ... I use about a 'tablespoon-glop' per gallon of water, shake well ... no problems with clogging my drippers, or anything like that ... it may brown the roots, look scary, but it rinses right off, no harm ... I foresee using it every grow :thumbsup: