Linkonberry

Linkonberry is a premium plant in Plants vs. Zombies 2. It was released alongside the Trojan Troubles Part 1 teaser in Piñata Parties and is available for purchase for $4.99.

Linkonberries can be planted on plants, and the plant that Linkonberry is planted on, will have increased defense and attack speed.

Origins
Linkonberry is based on the edible fruit of a Lingonberry (Vaccinium vitis-idaea), a short evergreen shrub that is found throughout the Northern Hemisphere from Eurasia to North America.

It's name is a portmanteau of "Link", referring to it's ability to be planted on plants, therefore linking with them, and "Lingonberry", reffering to the plant that Linkonberry is based on.

Plant Food Effect
Linkonberries, when consuming Plant Food, will do the plant food ability of the plant that Linkonberry is planted on, as well as upping that plant's defense and attack speed.

Enchant-mint Effect
When boosted with Enchant-mint, Linkonberries defensive boost will double and it's attack speed will double as well. Unlike other plants, Linkonberry's Enchant-mint effect will actually stay even when Linkonberry is not boosted, but Linkonberry will not be boosted with Enchant-mint again. Linkonberries are not boosted by the plant that it is planted on's mint effect.