Lava Guava

Lava Guava is a gem premium plant in Plants vs. Zombies 2. It erupts when a zombie is near it, briefly splashing lava around it in a 3x3 area, and leaving a lava puddle that damages zombies that step on it. The puddle lasts for 12 seconds before finally disappearing.

Plant Food
When fed with Plant Food, Lava Guava creates a fissure in the ground on all tiles in front of it. All zombies on this fissure are damaged.

Trivia

 * This, Pepper-pult, Fire Peashooter, and Torchwood are the only plants that generate heat in Frostbite Caves.
 * This, Chard Guard, Ghost Pepper, and Infi-nut are the only plants that cost 75 sun.
 * Coincidentally, these four plants have a mediocre recharge.
 * This, Banana Launcher, and Bamboo Shoot are the only plants that cannot be planted on minecarts. Trying to plant one on a minecart will say "Lava will burn the railcart".
 * While exploding, Lava Guava is invulnerable to any damage, including lasers, torches, surfboards and Gargantuar smashes. A Gargantuar will also keep smashing the tile even after the lava is created.
 * If more than one Lava Guava are in the same lane, and the multiple Lava Guavas are fed with Plant Food in the same lane, the Plant Food effect will create much more lava and damage.
 * If Lava Guava's Plant Food ability is used in Pirate Seas or Big Wave Beach, the water in the lane will boil and bubble up.
 * The player cannot plant on lava that the Lava Guava makes.
 * When it erupts, it damages all zombies within a 3x3 area.
 * After it erupts, the lava puddle that it left can still generate heat in Frostbite Caves.
 * When a Lava Guava is planted on a Lily Pad, it will melt the Lily Pad. It can also melt sap.
 * Even when it leaves its lava puddle behind, it can still be shoveled up for sun but the lava tile will stay.
 * It deals 10 normal damage shots when it erupts.
 * There is a glitch that if a zombie chews Lava Guava even though it won't get eaten because it is programmed to be invulnerable while erupting, the zombie will continue to stay in its place and do the chewing animation, even after it has erupted.
 * If Lava Guava's targets are either immobilized, it will not activate.