Poison Ivy (SodatheSoda)

Stabs enemies, dealing damage equal to 25% of the target's maximum health in 4 Seconds.

Overview
Poison Ivy stabs zombies nearby, making the zombie take damage over a 4 second period of time. By the time the 4 seconds are up and the zombie is no longer poisoned, 25% of the zombie's maximum health is gone (2.5 Hits or so for Basic Zombies).

Plant Food
Stabs in a 3*3 area around it, poisoning all zombies in that radius.

Strategy
This plant is extremely useful against large and tanky targets, taking them down in 16 Seconds. However, it can only hit one zombie at a time, so for that 16 seconds, unless zombies behind pass up the first zombie, it is defenseless against targets. Plus, it still takes 16 seconds to take out weaker targets, like Imps and Chickens, making it very worthless. Use wisely!

Suburban Almanac
Poison Ivy

Stabs zombies and deals 25% of its maximum health every 4 Seconds

Damage: 25% total health every 4 seconds

Cost: 150

Recharge: Typical

Plant Food: Poisons zombies in a 3*3 radius

"STAB STAB STAB!" goes Poison Ivy. Yeah, despite being kinda annoying, at least he isn't poisoning YOU anymore.

Overview
Stabs your plants, dealing 25% damage every 4 seconds. Poisons them again once 4 seconds is up.

Strategy
This nuisance of a weed is a threat depending on what plant it poisons. if it poisons a Puff-Shroom or other weak plant, it isn't that bad, since takes 16 Seconds to take them out. However, defensive plants, like Tall-Nut, are also taken out in the same time period, wiping out your blocking defenses. As you can see, it's main weakness is putting weak plants in front of it, making it waste it's powers on them. Don't use blocking plants against it.

Trivia

 * idk :P