Landmine

The Landmine is a rather useful instant kill plant.

Stats
HP: 10 when unarmed.

Damage: 1 instant kill

Special: Any zombie that makes contact with it when armed is blown up. Range is slightly more than its own square. If it is eaten when unarmed, it blows up in a 3x3 area, but it only deals 40 damage. It takes 3 seconds to arm, and its eyes are closed when unarmed.

Cost: 75 sun

Recharge: Slow

Strategy
It's very useful for causing massive damage. Since unarmed ones can still cause destruction, use them whenever, really.