Poison Ivy's appearance and name is based on the species Toxicodendron radicans, also known as the poison ivy.
Its description and idle animation are a reference to how in real life, when an animal or human comes into contact with poison ivy, the area of the skin that came into contact with the plant becomes itchy.
Statistics
Class: Kabloom
Tribes: Leafy Berry Plant
Trait: Anti-Hero 4
Abilities: None
Set - Rarity: Premium - Uncommon
Card description
"Guess who's itching for a fight? This guy right here!"
Update history
Update 1.12.6
▲ Tribe added: Berry
Update 1.14.13
Set - Rarity change: Basic - Common → Premium - Uncommon
Strategies
With
Poison Ivy has a terrible strength stat of 1, but that is only when it is engaged in combat against a zombie fighter. Otherwise, it can hit the zombie hero pretty hard, so try clearing out the path for Poison Ivy to strike with tricks such as Spring Bean or Berry Blast. Since it only costs 3 sun, you can play it on an empty lane on turn 3, should your opponent use up all their brains to play zombies.
Due to it being a berry plant, it can synergize with Sergeant Strongberry, so that 7 damage can be done to the zombie hero, or 3 damage to a zombie on its lane. It can also help boost High-Voltage Currant, as it will boost High-Voltage Currant whenever it does damage.
Against
You can use Rolling Stone when its extra Anti-Hero strength is not active, and Rocket Science or Cut Down to Size when it is. Any zombie that does 3 or more damage and/or having 2 health or more can stop Poison Ivy from wreaking havoc. However, beware since the plant hero may have some tricks up its sleeve. In that case, a Gravestone zombie will help, as the gravestone is immune to almost all tricks, with the exception being Grave Buster.
As of update 1.12.6, it now also a berry plant, so you can use Squirrel Herder to instantly destroy Poison Ivy if it is causing too much trouble. However, beware if your opponent is Spudow, as he can play Grave Buster to remove Squirrel Herder, thus wasting 2 brains in the process.
Gallery
Plants vs. Zombies Wiki has a gallery for Poison Ivy.