Spikerock

Spikerock, upgrade from Spikeweed is an Area of Effect plant that attacks, dealing normal damage to all zombies that walk on it. It's purchased from Crazy Dave's Twiddydinkies for $7,500. It is a passive attacking plant, dealing high damage to any zombies that walk on it.

The Spikerock appears to be based on the Metallophytes plants.

Powers
The Spikerock's main power is to hurt twice zombies that steps on it.

If Plant Food is given to it, metal spikes will appear at his entire line, killing most of the zombies.

Trivia

 * The Spikerock can not be used at roof levels.
 * The Spikerock, Spikehard and the Squash are the only plants that can survive Gargantuar smashes and a vehicle.
 * In games such as Plants vs. Zombies 2: It's About Time and Plants vs. Zombies 5: The Adventure Continues at Sea!, it's not a upgrade plant.