The Tree of Spirits is a type of garden tree that produces the homegrown fruit, Homegrown Spirit Fruit. It can be grown in a pet's garden by buying and planting the limited time Tree of Spirits Seed. This tree type was introduced to Facebook versions of Pet Society on October 21, 2010. It was the winner of a Halloween design competition. After planting, it will take 72 hours for the tree to reach maturity. Afterward, the tree will begin producing fruit, one Spirit Fruit at a time, randomly. A pet can have up to three total fruits on the tree at once.