Hoopberry trees are a kind of tree found on the island of Maris. They are grown in the Rin Orchard by Strong Jonn. The fruit of the trees, the hoopberries, are blue, and are used to make hoopberry juice and hoopberry pie. The hoopberry tree have sweet white flowers whose nectar are made into golden honey by bees during the warm seasons, which is gathered from bee hives and eaten and sold by the Travellers.