Doom-shroom

The Doom-shroom is the most powerful of all of the exploding plants, able to affect every row when exploding. Detonating it creates a crater which cannot be planted on with plants. Plant it and watch it clear the screen, due to its radius of approximately 2.5 squares.

It takes about three minutes for the crater to vanish, during which time nothing can be planted there. If planted on a Lily Pad, the crater takes the form of an oil slick and debris-filled area in the water, or a hole in a Roof tile if planted on a Flower Pot. If there is a Pumpkin planted around the Doom-shroom, it will also be destroyed when the Doom-shroom detonates.

Suburban Almanac Entry
Doom-shroom

Doom-shrooms destroy everything in a large area and leave a crater than can't be planted on.

Damage: massive

Range: all zombies in a huge area

Usage: single use, instant

Special: leaves a crater

Sleeps during the day

"You're lucky I'm on your side," says Doom-shroom. "I could destroy everything you hold dear. It wouldn't be hard."

Cost: 125

Recharge: very slow

Strategy


This is the atomic bomb of plants, and can easily destroy huge waves of zombies. Although it is a powerful plant, it can't defeat Gargantuars in one hit. As it has a very slow recharge time, you will want to plant it when it can destroy the most zombies, or plant one ahead of time in the daytime levels. In Survival: Night and Survival: Fog, the Doom-shroom can be used to destroy an entire wave of zombies, simplifying the process of defeating waves if your defenses are low. Planting one in the center row maximizes the amount of zombies it can kill.


 * Note: This is not as good of a plant for daytime use, as you will need to spend 75 Sun on a Coffee Bean to wake it up. You may want to plant the Doom-shroom ahead of time, so as to save time when you need to wake it and prevent the Zombies from eating it up.



Trivia

 * The Doom-shroom has the largest area of effect (3 squares) of all exploding Instant Kill plants, so to maximize its destructive power you should plant them in the center row.
 * It is also the only Instant Kill that is a mushroom.
 * Strangely, despite the fact that a roof tile is a non-living object, the tile slowly "heals" and removes the crater left behind by a Doom-shroom. This also happens with water.