Grammi is the matriarch of the Gummi Glen Gummis. Grammi serves as a mother for the group, cleaning and cooking (though her cooking can sometimes vary in quality). For a large part of the series, she is also the only Gummi Bear to know the secret recipe for Gummiberry Juice, which the bears need to bounce. She also seems to have a rivalry with Gruffi, though the two can work together when it counts.