any kind of shock can stunt/delay growth i take it that when u did this it broke sum of the roots?? i did something like that kindda b4 there was 1 not showing roots so i ripped the plug open but careful not to rip the roots and looked inside and a just left it in the plug and closed it back up and after that it would'nt grow anymore after that so i don't know but i know it's not good to mess with it after it's rooting in the plug