I really want to start growing my own plants but I absolutely am terrible at doing so! (At least starting at the seed stage) I have a few local flower shops and of course home depot to get flowers from but most of the places use some type of fertilizer or bug remover and I was wondering if I took those plants and replanted them how long it would have to take for all the pesticides and such to leave the plant and be safe enough to go in my little torts enclosure? If the chemicals would even go away at all?