Shadow Currant

Shadow Currant is a premium plant in Plants vs. Zombies 2 that can be purchased for 100 gems.

Origins
Like Electric Currant, she is based on the real-life plant with same name.

Overview
She will create poison mist when connected to other Shadow Currants, either horizontally or vertically. The poison mist poisons any zombie that passes through it. The poison mist can also stun any zombie on that tile for four seconds when generated.

When powered by Moonflower or Conceal-mint, Shadow Currant emits poison mist surrounding her in 3x3 that poison zombies nearby her. The poison mist now slow down any zombie that passes through it.

Almanac
The darker cousin to Electric Currant, Shadow Currant hails from the shadow family of plants and works in harmony with the likes of Moonflower and other Shadow Currants for that bit of extra shadowy goodness.

Plant Food
Shadow Currant pulls all zombies (except flying zombies, Gargantuars and robot zombies) on the poison mist into the ground. Afterward, she will permanently gain bonus attack power.

Trivia

 * I got this idea when I was on The Lawn on PvZ Wiki.
 * Like Shadow-shroom, she is not in Ail-mint family despite being able to poison zombies.