Last Star

 (pyin: 末来星 translation: Last Star) was a plant in both Plants vs. Zombies: Great Wall Edition and Plants vs. Zombies Social Edition as a promotional plant and served as the replacement to Starfruit. It looked and attacked identically to Starfruit, with the only differences being the color of the plant itself and its projectiles

Origins
It was based on the Starfruit from the original game with its name coming from the chinese milk company of the same name. Its blue coloring comes from the company Last Star's logo, which is the company's name in white text with an outline of a blue star at the end.

Trivia

 * It and Calm Chuck were the only two plants in Social Edition to be sponsored by a product.