"A Tree Grows in Dunwyn" is the second segment of the twenty-fourth episode of the Adventures of the Gummi Bears. It premiered on September 26, 1987 along side "Presto Gummo" and is the second segment of the third episode in the third season.
The trolls have escaped from the dungeon of Castle Dunwyn and are looking for stolen gold reserves. When they see the gold was stored in an apple tree meant as a gift for King Gregor, the trolls take the Gummi Glen Gummis as hostages.
- Second appearance of the Trolls.