Michkaanswered grow question 6 years ago Hi there ! Your plants are looking good from here, 5th week is the beginning of the flowering explosion in general it happens week 5/6... Specialy if it is sativa dominant hybrid... As they look helthy and you have no problem of temperatures like most people here, you can wait a little bit, it will come. You can give a pk booster now if you have some.. Hope i helped you ! Feel free to ask anything