Upgrade plants

If you are looking for the Power Ups and Bonuses in Plants vs. Zombies 2: It's About Time, see Upgrades.

 are upgraded versions of some plants, and the upgrades that must be bought from Crazy Dave's Twiddydinkies. To activate an upgrade, it must be planted on its weaker variant. They have a cost of one charge that varies from $5,000 to $30,000.

Plants
There are a total of 8 upgrade plants.

Gatling Pea
The Gatling Pea shoots four peas per round of fire. It costs $5,000.

Twin Sunflower
The Twin Sunflower provides two units of Sun every time it emits yellow rays. It costs $5,000.

Gloom-shroom
The Gloom-shroom shoots four bursts of Area of Effect fumes into all adjacent spaces per round of fire. It costs $7,500.

Cattail
The Cattail shoots two Spikes per round of fire that automatically home in on a target and can cover the entire lawn. It costs $10,000.

Winter Melon
The Winter Melon lobs frozen Melons that deal heavy immediate damage to its intended target, and some damage to nearby zombies, and a slowdown effect to all zombies hit. It costs $10,000.

Gold Magnet
The Gold Magnet periodically collects Silver Coins, Gold Coins, and Diamonds for the homeowner. It costs $3,000.

Spikerock
The Spikerock spikes zombies at a rate of two damage per round of fire. It can sustain nine Gargantuar blows or tire pops. Its spikes are indicators of its remaining health, as it loses one big spike every three Gargantuar blows or tire pops. It costs $7,500.

Cob Cannon
The Cob Cannon is a reusable Cherry Bomb with a recharge rate of 36 seconds. Clicking or tapping the Cob Cannon will allow the player to select where to fire the Corn Cob. The Cob Cannon's Corn Cob can remove ladders and is an instant kill. It costs $20,000.

Trivia

 * The Imitater cannot imitate an upgrade plant for obvious reasons, excluding hacking.
 * The player may not have the Upgrade Plants at the time of purchase.
 * However, you can upgrade an Imitater, it just won't be black and white.
 * You can use Hex Editor to make Imitater versions of them.
 * In Survival: Endless, every upgrade you plant will increase by 50 sun.
 * All Upgrade Plants have a very slow recharge.
 * When a Pumpkin is placed on a Cattail, when you remove the Cattail, it will downgrade into a Lily Pad without destroying the Pumpkin.