Zircornium

Zircorniums are levitating, defensive, environment-modifying plants that can take a lot of hurt, but rot the area around them.

Overview
When planted, Zircornium renders the 8 tiles directly around it unplantable. This means that no plant can be planted there, aside from floating or flying plants, such as Ghost Pepper, Caulipower, or other Zircorniums. These tiles do not hurt zombies.

The tiles it affects become fertile again after the Zircornium that affected them has been absent for 5 seconds.

Zircornium is also metallic and susceptible to flames. No matter how much health it has, it will instantly die if it is attacked by any fire or laser type attacks. When this happens, however, it leaves behind a hot puddle of melted zirconium. This puddle acts as a Spikeweed, and it stays behind for 6 seconds.

Zircornium is unable to be planted in the first 3 columns of the board. This is done to avoid having the player make a cheap barricade at the front of the lawn. If the player does try to plant here, a message shows up saying "Zircorniums are too shy to be planted out front."

Zircornium is also a floating plant, meaning that it can be planted above water without a Lily Pad.

A Zircornium on a minecart will still make its surrounding area infertile. However, these tiles do not stay infertile if the Zircornium is minecarted out of the area.

Zircornium is based off of maize, otherwise known as corn, and the the element of zirconium. Its name is a portmanteau of "zirconium" and "corn."

Plant Food Ability
Using Plant Food on Zircornium causes it to gain leathery armor that increases its health by an extra 10 ndb. However, the tiles around it become fertile again.

Strategies
Zircornium offers a strong defense for the price of a Wall-nut. However, its special effect makes most other defensive strategies unable to be executable, such as Spikeweeds or Chompers. Instead, straight-shooting or lobbed-shot plants are recommended to be used instead.

Trivia

 * It, alongside Nebumelon and Queen Gilliflower, is part of a group of plants that were created to try and complete a full alphabetical list of plants made by GopluXPoplu.