Plantera

"The jungle grows restless..."

Plantera is a Hardmode boss that can be fought in the Underground Jungle after all three Mechanical Bosses (The Destroyer, Skeletron Prime, and The Twins) have been defeated. Plantera drops a Temple Key upon defeat, allowing access to the Jungle Temple.

While Plantera is alive, her exclusive Music will play.

Summoning
After all three Mechanical Bosses have been defeated, Plantera's Bulbs will randomly spawn in the Underground Jungle (indicated by the status message "The jungle grows restless..."). Destroying one of these bulbs requires a Pickaxe, Drill or the Clentaminator (with dark blue solution), and upon doing so, Plantera will spawn immediately. Plantera will also be summoned when using actuators under the bulb.

Attacks
Plantera moves through blocks slowly, using long vines to grapple foreground blocks, similar to multi-Grappling Hooks. In the second phase Plantera grabs Background Walls.

First form
Plantera creeps after the player, firing pink Seeds with increasing speed as she takes more damage. When below 80% health ( / ), she begins dispensing bouncing Thorn Balls and firing green Poison Seeds.

Although Plantera attacks at range, contact can still occur if she gets too close, causing 50 / damage.

Second form
Once Plantera is brought down to half of her original health, she changes to her second form: her pink petals fall away to reveal a thorn-filled mouth. In this form, Plantera moves more aggressively and attempts to make contact. She also sprouts additional mouths that are attached via vines (called "Plantera's Tentacles") to her hooks. Once all of the tentacles have been killed, they will never regrow, making Plantera much easier to fight.

Plantera will also release floating pink spore projectiles that drift towards the player, similar to the spores released by the Giant Fungi Bulb.

Enraged behavior
Plantera only becomes "enraged" if she follows the player out of the Underground Jungle, whether it be to the surface, to the Underworld, to a corrupted or hallowed part of the Underground Jungle, or to a completely different biome. This causes her to obtain double damage (quadruple in the second form), double defense and increased movement speed, as well as changing her attack patterns and directly rushing the player. Plantera's behavior returns to normal upon re-entry of the Underground Jungle biome.

Attack types

 * Plantera's Hook.png Plantera's Hooks: The ends of Plantera's tentacles, which cling to surfaces and deal 60 / damage on contact.
 * Plantera Seed (animated).gif Poison Seed (animated).gif Seeds (first stage): Similar to the stingers of the Hornets and petals of Flower Pow. In expert mode, these can travel through blocks. The green Poison Seeds are more deadly than the more frequently fired pink Seeds, but are not fired until Plantera's health depletes past 80% life ( / ), similar to the Thorn Balls. Pink and green Seeds deal 22 / and 27 /  damage respectively.
 * Thorn Ball.png Thorn Balls (first stage): Thorn Balls are similar to the Spiky Ball weapon. They bounce around erratically and can overwhelm the player if they stay in the same area for too long, as well as dealing 62 / damage on contact. Plantera will not begin releasing Thorn Balls until she drops below 80% of her life ( / ). She will stop releasing the Thorn Balls once she enters the second stage, although the Thorn Balls previously released may linger for a bit.
 * Plantera's Tentacle.png Plantera's Tentacles (second stage): Gnawing minions on "leashes", akin to smaller versions of The Hungry. They deal 60 / damage and get in the way of the player's attacks, making piercing weapons more valuable. With 1000 /  HP they are relatively weak and easily killed with proper equipment.
 * Spore.png Spores (second stage): Similar to the Fungi Spores fired by the Giant Fungi Bulb, travelling through blocks. Easily destroyed, but deal 70 / damage if touched.

Expert mode
In, there are a few significant differences in Plantera's attacks, aside from the default increased health and damage.

Phase 1
Plantera's Seeds, that originally did not travel through blocks, now can and deal increased damage. They also have limited homing capabilities.

The Thorn Balls are also more common and home in on the player.

Phase 2
Plantera's Tentacles, originally only attached to the body, now are attached to the Hooks and have increased in number (considering there are 3 more for each hook, there appear to be 9 extra tentacles). They also have more health than usual (including the default increased health). Plantera's body also does more damage and is faster than normal.

Aftermath
Plantera always drops a Temple Key, which grants access to the Jungle Temple and the Golem boss. In the, Temple Keys can also be combined with Biome Key Molds to craft Biome Keys; but in the , Biome Keys drop in their respective biomes and no longer require molds.

A status message saying "Screams are echoing from the dungeon..." will appear, signaling that new, more difficult enemy types will begin spawning in the Dungeon (see details). These drop powerful new weapons, accessories, and other items. Dungeon Spirits will begin to appear when Dungeon enemies with more than 100 health are slain, which drop Ectoplasm, a new crafting material that offers access to the Pumpkin Moon and Frost Moon events, as well as.

For players on the, it is a good idea to keep the Temple Key for crafting Biome Keys and enter the temple with actuators.

Additionally:
 * Hardmode Crimson, Corruption, and Hallow spread is slowed to 1/2 (50%) of their previous speed.
 * Biome Keys can now be used to open Biome Chests in the Dungeon (they can unlock Chests pre-Plantera on ).
 * The Cyborg NPC becomes available.
 * The Truffle begins selling the Autohammer, used to craft Shroomite Bars.
 * The Traveling Merchant begins selling the Pulse Bow.
 * The Witch Doctor begins selling several items related to Minion summoning (requires Pygmy Staff), as well as the Vial of Venom.
 * Butcher, Nailhead, Deadly Sphere, Psycho and Dr. Man Fly will start spawning during the Solar Eclipse event.

Tips

 * Excavate a sizable area to allow easier dodging before summoning Plantera.
 * Widening a Bee Hive in the Underground Jungle is a fast and effective way of making an arena for fighting Plantera (but watch out for the Larva unless you want to intentionally summon Queen Bee).
 * Using a Gravitation Potion can help the player avoid any further damage from Thorn Balls laying on the ground, as the Thorn Balls obey gravity and fall to the floor. Alternatively, the player can use an arena which has a large empty area at the bottom for Thorn Balls to bounce in, well below the player and out of harm's way.
 * Plantera's Bulbs can spawn in player-made Jungle biomes, which can provide a slightly easier way to fight Plantera.
 * Narrow passages slow Plantera as it takes more time for her to grip the surrounding terrain.
 * Plantera spawns off-screen and is fairly easy to outrun, which means if the player intends for Plantera to chase them, they will need to stop periodically or move much more slowly than normal. Note that she moves faster and more aggressively in her second phase.
 * The Flamethrower could be considered for fighting Plantera due to the continuous stream of projectiles emitted, and is a pre-Plantera weapon which can easily be crafted after defeating Skeletron Prime.
 * Using Golden Shower, Ichor Arrows or Ichor Bullets to lower Plantera's defense is sure to make the fight less difficult. In addition, the Ichor debuff makes Plantera more visible, as it gives her a bright yellow shading.
 * Summoning Queen Bee during the fight is a very easy way to gain a 200 HP heal that can be "left alone" until needed.
 * Using timed Teleporters and a Death Sickle can be an easy way to beat Plantera. Make sure to always be aware of Plantera's Hooks.
 * On the, if all players die while Plantera is alive, she will stay where the player died, so try to stay around a Bed or the spawn point. This will work on the in multiplayer as well.
 * Avoid using the Clentaminator near you to prevent Plantera from getting enraged during battle.
 * For players using a Neptune's Shell, clearing a large area and flooding it can make a great arena. Combining this with an item that increases swimming speed (preferably a Flipper Potion to free up an accessory slot) should render dodging the majority of Plantera's projectiles a relatively easy task.
 * In her Plantera's form, her only ranged attack consists of the Spores which are very easy to kill. This means as long as the player maintains their distance, they could kill her while taking little to no damage.

Trivia

 * The name "Plantera" is a play on the title of the former American groove metal band, which is Cenx's favorite band. Plantera drops "The Axe", a tribute to who was the guitarist of Pantera. Also, the achievement for defeating Plantera is called "The Great Southern Plantkill" in reference to Pantera's eighth studio album , released 1996.
 * Plantera's music is a metal theme, likely because Plantera herself is a reference to the band Pantera. Parts of her music have a similar sound to the end of Pantera's song Domination from their fifth studio album , released 1990.
 * "Plantera" is Swedish for the infinitive of the verb "to plant", and French for "will plant".
 * On the the saving icon is one of the Thorn Balls that Plantera fires.
 * Plantera has the largest amount of unique drops in the game, tying with the Queen Bee at 15.
 * Plantera is one of two bosses with exclusive music for herself, the other being Moon Lord.
 * Plantera appears to be an overgrown flower with its petals shut in her first phase, while the Spores are simply snapdragons with their petals shut. The Thorn Balls, though, look like black spores with purple dots in the middle.
 * According to Cenx, Plantera is female.
 * The Thorn Balls deal much more damage on the Mobile version, even hitting harder than in Expert Mode.

History
{{history|version=mobile|Mobile 1.2.6508

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