I cant find Plantra orbs

I cant find any Plantra orbs but I did kill the Destroyer but cant find any! So that means I cant get shrumite bars! Can someone please help me!? PLZ I also found my lizardhard temple SUPER HARD to find! All my other worlds I had no trouble finding the temple! Speaking of the lizardhard temple, If I cant fight Plantra, I cant get in the temple!! So PLEASE HALP MEEEEEE!! Also if I cant find Plantra bulbs I cant get the dungeon keys! And I have ALL the key molds!! SO PLZ HELP ME!!

RyanPlays37 about Terraria, v1.2.12785