No Plantera Bulbs!!!

Ok a friend called me and said he couldnt find any Plantera Bulbs to spawn Plantera, so I thought it was just a glich or he had bad luck or somthing. But when I defeated all 3 mechanical bosses and went into the jungle Biome to find some Plantera Bulbs I couldnt find any, and if your saying Im just having bad luck to Im not, I have searched every part of my jungle Biome (and its on a big world) and still couldnt find one. So please fix this.

Christiangamer56 about Terraria, v1.2.11971