when do white tree frogs lay eggs? my guess is summer since they like warm weather. how long before the eggs hatch? how long does the tadpole stage last? I read 16 weeks but also says depending on frog species. I know it takes 18 months for a wtf to be fully mature..so about a year to a year and a half before mine will be full grown and if he is really a boy make noise. he's not chatty right now in fact he hasn't made a peep.