I trained this juniper in the cascade style with guidance from Penny Jensen. Many different tree species are used for bonsai, especially deciduous and conifer trees. Conifers include pine, juniper, cedar, cypress, and redwood. Deciduous trees include maple, elm, ginkgo, and oak. Bonsai are kept outdoors on shelves.
Bonsai trees can come from temperate or tropical regions.
A tropical tree popular for bonsai is the banyan. Fruit trees make good bonsai. These include cherry, plum, quince, olive, and pomegranate. This is a deciduous bonsai, a cork oak forest with 11 trees. Climate is especially important in caring for bonsai.