I am by no means an experienced grower - but I would advise picking up a water meter. You can get them for less than $10 at most garden stores (or you can spend a whole lot more, if you want something fancier). I check every plant, every day. Probably a bit excessive - but I'm fairly new to the game, too. I have several different strains, in several different size pots (ranging from 5 to 100 gal.), and watering was pretty much a guessing game for a while. The meter really helped me get a handle on how much water each plant needs, and how often. Good luck!