you can use superthrive whenever you want really.doesnt matter at all and really doesnt do much....but for baby plants that need that extra push it will work...

it says to use a drop a gallon i have no idea on what they think a drop is so i pour some into the cap,then pour the cap onto one plant water it and so on,you can use it every watering if you want to,,,and when you fertalize your plants i would use a capfull of it as well...

i use it stuff smells like ass and i dont see much of a diffrence with or without it..