Plantera's Bulb

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Naturally generated
Naturally generated
The content described on this page is only generated naturally and therefore cannot be collected.
Plantera's Bulb
  • Plantera's Bulb placed graphic
Placeable✔️ (2 wide × 2 high)
Plantera's Bulb in dark and light.

Plantera's Bulb is a Hardmode background object that will summon Plantera when broken. Plantera's Bulbs are usually found naturally placed in random Underground Jungle locations once all three of the mechanical bosses have been defeated (on the Nintendo 3DSNintendo 3DS version version, one suffices) – the status message "The jungle grows restless..." indicates that Plantera's Bulbs have begun spawning. On the Desktop version Desktop version, Console version Console version, and Mobile version Mobile version, one Plantera's Bulb will immediately spawn when all three mechanical bosses are defeated for the first time.

A Plantera's Bulb must be destroyed with a pickaxe, a drill, a block, an actuator, a Clentaminator using any but the Green Solution, or with explosives in order to summon Plantera.

Plantera's Bulbs emit faint pink light in total darkness and will appear on the minimap in pink in areas the player has already explored. They spawn one at a time after a delay of about half a day between them, and unless destroyed, several will eventually be present (10–15 in a large world's naturally generated Underground Jungle). If destroyed, they respawn after the same delay (though not necessarily in the same spot), allowing the player to summon Plantera an infinite number of times. Plantera's Bulbs cannot be detected by the Metal Detector(Desktop, Console and Mobile versions) or its upgrades.


Bulb distribution at maximum concentration.
Plantera's Bulb on the map screen.
  • Plantera's Bulbs can spawn on any block of Jungle grass (including player-placed ones) below the surface; it does not have to be in an Underground Jungle biome. However, they will never spawn within 302×302-tiles rectangles (centered on the Plantera's Bulbs) of each other,[1] i.e. they are spaced 150 tiles apart at maximum concentration.
  • Plantera's Bulbs will break if the block beneath them is turned into a sloped block using a hammer, is changed using the Block Swap, turns into a Chlorophyte Ore block, comes in contact with lava, becomes inactive by use of actuators, or is converted by biome spread or the Clentaminator.
    • Plantera will only be spawned if there is any player within a rhombus whose diagonals are 50 tiles long, centered on the broken Plantera's Bulb.[2]
    • If a Plantera's Bulb is broken while Plantera is still alive, a second Plantera will not spawn.
  • Plantera's Bulbs are very easy to spot, as they emit a faint pink light. On the map screen, they appear as small pink squares. Desktop versionConsole versionMobile version They will also be labeled as "Plantera's Bulb" if the cursor is hovered over them on the map screen.
  • Painting Plantera's Bulb will not change the color of the summoned Plantera.


  • If planning to farm Plantera, a viable method is by digging long tunnels of mud near an arena so any Plantera's Bulbs can be easily found and reached.
  • Plantera's Bulbs can be farmed with rows of Mud Blocks with Jungle grass on them.
  • Sleeping(Desktop, Console and Mobile versions) is a good way to get Plantera's Bulbs to spawn.
  • In Journey Mode(Desktop, Console and Mobile versions), the time speed can be set to 24× to increase the rate at which Plantera's Bulbs grow.


  • The Plantera's Bulbs are very similar in appearance to Plantera's first form.
  • The Plantera's Bulbs are similar to the Larva in that they are both ambient objects in the Underground Jungle which summon a boss when destroyed.
    • Additionally, both vaguely take on the appearance of their respective bosses.
  • Plantera's Bulb can spawn on blocks that are at 0' depth, giving the appearance of spawning in the surface layer.


  • Desktop 1.2.3: Will no longer spawn until all 3 mechanical bosses are defeated.
  • Console 1.06: Will no longer spawn until all 3 mechanical bosses are defeated.
  • Switch 1.0.711.6: Introduced, only spawns after all 3 mechanical bosses are defeated.
  • Mobile 1.2.11212: Will no longer spawn until all 3 mechanical bosses are defeated.


  1. Information taken from the Desktop version Desktop source code, method UpdateWorld() in Terraria.WorldGen.cs. There may be inaccuracies, as the current Desktop version Desktop version is
  2. Information taken from the Desktop version Desktop source code, method CheckJunglePlant() in Terraria.WorldGen.cs.