Torchwood

Torchwood is a plant which lights peas on fire.

Although there is a flowering plant family known Torchwood (Burseraceae [1]), which includes frankincense and myrrh, the name may also be a reference to the eponymous organization in the Doctor Who spin-off series on BBC[2].

Usage
Place Torchwoods in any lane in front of any plant that shoots peas to turn the peas into flaming projectiles that do double the normal damage. The exception is the Snow Pea which will simply melt when passing through a Torchwood, becoming a normal pea.

Torchwoods also push back fog slightly (about one square in radius).

Suburban Almanac Entry
Torchwood

Torchwoods turn peas that pass through them into fireballs that deal twice as much damage.

Special: doubles the damage of peas that pass through it. Fireballs deal damage to nearby zombies on impact.

Everybody likes and respects Torchwood. They like him for his integrity, for his steadfast friendship, for his ability to greatly maximize pea damage. But Torchwood has a secret: he can't read.

Cost: 175

Recharge: fast

Strategy
Torchwood should be taken on any level you plan to use peas, to maximize the damage potential. You only need one in each lane, but you should definitely plant one before placing a second pea-shooting plant in the same lane, as the fireball area damage will be more important than firing twice as fast. Keep Torchwoods behind your regular defenses such as Wall-nuts and Tall-nuts, but far enough to the right that you can place several pea-shooting plants behind it. Plan ahead if you intend to use Snow Peas, though, and put them to the right of any Torchwoods. This is usually not worth it, however, as flaming peas will un-freeze zombies. It is better to use a Winter Melon in conjunction with the Torchwood, since some of the zombies will stay frozen.