Plantera's Bulb

 is an object found in the Underground Jungle which can be destroyed with a Pickaxe. When destroyed, it summons Plantera.



Spawning
After killing at least all 3 Hard Mode boss, the bulbs will spawn somewhere in the Underground Jungle. They can be destroyed with a pickaxe. Upon doing so, Plantera will be spawned. The bulbs gives off a glowing particle effect, which helps to locate it. On the minimap, the bulbs are pink in color. This can sometimes be confused with pots or altars. Multiple bulbs can be found in the same Underground Jungle.

Glitches

 * Sometimes when trying to destroy a bulb, it only destroys the block you used your pickaxe on (fixed by destroying any other block of it).