fluching is needed ina soil or just about any time of grow medium when salts build up n the roots of the plants killing them in a sense. When you fluch you take pHed water and pour it in or drip it in until the water exiting the pot run clear. You can then essentially start fresh with nutrients (nutes). Curing is after you flower a plant, you will have to cure the bud to get out all of the excess moisture and chlorophyl which tastes nasty, you also want to fluch plants of any nutes about 2 weeks prior to harvest to get a bettertastes and smothertaste, curing is an essential part of a good smoke, it adds flavor and smootheness to the bud. you want ot cure/dry in an environment with moving air and mild temp changes like a garage. I woudl suggest reading the basics before starting a grow, i knwo i read a litle but once i was started i wished i could have read more, the more you knwo the better off you are, you will alwasy have questions and that's what these fine guys are here for, so read the basics and get and idea, start with bag seed or somethign cheap then get a feel and move for bigger and better.

GG23