Jalapeno

The Jalapeno is a high-damage explosive that can clear an entire lane of zombies and even melt ice from Zomboni's.

Its shape and name are based on the Jalapeño chili pepper, a cultivar of the Capsicum annuum species, valued for its spicy flavour.

Suburban Almanac Entry
Jalapeno

Jalapeno destroy an entire lane of zombies.

Damage: very massive

Range: all zombies in a lane

Usage: single use, instant

"NNNNNGGGGGG!!!!!!!!" Jalapeno says. He's not going to explode, not this time. But soon. Oh, so soon. It's close. He knows it, he can feel it, his whole life's been leading up to this moment.

Cost: 125

Recharge: very slow

Strategy
Jalapenos can be good last-minute saves, since they can be planted behind an incoming wave, clearing the entire lane. Also, since a Jalapeno will melt ice as well as destroy a Zomboni and ladders, it makes a great addition to any levels with them; this is why Jalapenos are of great help in the Mini-game Bobsled Bonanza. It takes two Jalapenos to kill a Gargantuar, so keep that in mind. You can also use a Jalapeno on a Gargantuar when it throws its Imp, as it will be destroyed along with the Gargantuar.

When dealing with Dr. Zomboss in the boss battle, the Jalapeno will destroy incoming snowballs he sends, as well as do some damage to his Zombot (if his head is shown).

Note, however, that Jalapenos also unfreeze any zombies that can survive it, (Gargantuars, Giga-gargantuars and Dr. Zomboss) in the same manner as Torchwood fire.

Column Like You See 'Em Mini-game
In the Mini-game Column Like You See Em, the Jalapeno can be planted in a column of pots to clear the entire roof of zombies, except relatively healthy Gargantuars. These are only obtained once or twice, so they should be saved for either when huge waves 2 and 3 when Gargantuars appear, or when Ladder Zombies have placed ladders on your defensive plants. But Jalapenos will kill all of them.

Trivia

 * The Jalapeno's name is mispelled in the game; The correct spelling is Jalapeño.
 * Because of this, the Jalapeno should be pronounced Hal-A-Pen-O as opposed to the correct Hal-A-Pen-Yo.
 * Some people, because of poor reading skills, can pronounce it as HA-PA-LE-NO or JA-PA-LE-NO.
 * It seems that the Jalapeno is actually sweating. This may be due to that he is hot as he is a chili, or it may just be reflections from the sun.
 * The Jalapeno plant in real life is not actually the hottest chili pepper. In fact, the hottest pepper, the Naga Viper, which is 1,349,000 on the Scoville scale!
 * The flaming effect is, assumably, due to the spiciness of a chili when eaten.
 * The Jalapeno is the only explosive Plant that does not create a word when detonating.
 * The row of flames seems to distinguish from the left.
 * The Jalapeno's eyes become even more red when it is about to detonate.
 * It is unknown why the fire produced by the Jalapeno doesn't clear the fog.
 * No matter which column you put a Jalapeno in, it will always destroy the whole row. Unlike other instant kills.
 * It is unknown why the Jalapeno's fire doesn't burn the lawn or the plants.