Virtual Villagers 3? Help My tree isn't growing?

do research and gain 54,500 tech points and do level 3 and then a long red plant will appear which is called pitcher plant and then do alchemy of pitcher plant,black orchidand black orchid and let one vilager to use it then he or she will take it to the sea and you will have now fishing and you can get food how much you want!!!!!!!!!!!! if yes chose my answer as the best answer.pleaseeeeeeeeee.