Grotatoes are a new species of plants (specifically potatoes), created by Tennis Ball. They first appeared in Welcome Back. They were made for Fries to make more fries for him. They are modified to grow in Yoyle City, whereas normal potatoes can't grow in Yoyle City because of the low amount of sunlight.
Not much is known about Grotatoes, except for the fact that according to Tennis Ball, they might have some side effects.
Grotatoes look like normal potatoes with purple dashes on it.
- The appearance of a grotato was revealed by Cary on the HTwins Central.