Abyssum

Abyssum is a plant that makes a portal to kill zombies. Her name is a portmanteau of Alyssum, a flowering plant species, and Abyss, referring to the portals she creates. Her gender is confirmed to be female.

Overview
Abyssum is designed to be used as a supportive plant. Though her attack is powerful, the randomness of it appearing anywhere on the board makes her not as much of a viable option for a main attacker. Furthermore, the fact that she cannot attack gargantuars makes her even less viable on those levels.

Strategy
A fact not stated almanac is that her portals will not appear on spaces already taken by a plant. This means that by using other plants, you can herd her portal to a space that you want.