Gandolf tomato is a taller dwarf plant that has a vine habit. It produces some of the prettiest bi-color, red and yellow, blunt heart-shaped tomatoes. Determinate, stringy plants can be five feet tall and prolific. I have noticed that like Grinch Cherry, these hate to lose a bloom. As a result, mostly all of their blooms turn into fruits. Gandolf plants have to be staked early.