So I killed all mechanical bosses but the plantera has not spawned

Bosses - Terraria Wiki

Bosses - Terraria Wiki

How to Summon Plantera in Terraria

All Terraria bosses list in order

Mobile - Unable to beat mechanical bosses. Help please

I have been searching everywhere and I can't find plantera's bulb. I was wondering if anyone had any tips! : r/Terraria

Why Aren't Plantera's Bulbs Spawning in Terraria? - Game Voyagers

Terraria 3ds All 3 Mechanical Bosses + Plantera

Resolved - [Mobile] Plantera bulbs doesn't spawn

How to kill pre-hard mode bosses in Terraria - Quora

So I killed all mechanical bosses but the plantera has not spawned in. Did I miss something? : r/Terraria

Terraria: Plantera Boss Guide