Wintergreen (Iced Stream)

Wintergreen is the third plant obtained in Iced Stream in Plants vs. Zombies 2. It is unlocked in Iced Stream - Night 12.

Wintergreen freezes a single water tile into an ice tile. In Iced Stream, since regular plants can't be planted on a water tile, Wintergreen turning the water tile into an ice tile makes it so that regular plants can be planted on. In Big Wave Beach, Wintergreen also turns a water tile into an ice tile. The ice tile here acts as a Lily Pad with only 50 dps of health (1 bite).

Wintergreen slows down all zombies in 3x3 area upon usage for 5 seconds.

Origins
Winter is based on the real life wintergreen berries. They demonstrate the "evergreen" characteristic, that is they remain green throughout the winter. Another term for this characteristic is "wintergreen", though not as commonly used.

Strategies
Arctic Rose is a good plant to have in your defense and it should be treated similarly to a Caulipower, with it being best not to use it with your main defense. Arctic Rose shouldn't be brought to Frostbite Caves, as zombies are immune to the chill effect Arctic Rose delivers. Don't pair Arctic Rose with fire plants, as it will make the effect almost useless as fire peas and projectiles remove the chill effect.

Winter-mint Effect
When boosted with Winter-mint, Wintergreen freezes all zombies in 3x3 area centered on its position.

Level upgrades
The slow down time increases for +1 second for every level upgrade up to level 10 (14 seconds).