There are several varieties of Bonzai Trees available at Bonzai nurseries, but these can be very expensive. Another option for growing your own Bonzai Trees is to start them from seeds. Though you may not be able to reproduce the exact tree that you see in the nursery, you can create a miniature Bonzai Tree that is very similar.
It is important to understand that in actuality, there is no such thing as Bonzai Tree seeds. Bonsai Trees are grown from the natural seeds of trees and shrubs that are modified into miniatures through different pruning and growing techniques.
The one exception to this is the Japanese Yatsubusa Tree. This tree has been genetically modified to produce a miniature tree. The genetically modified Bonszai Tree is the result of being infected with a fungus. The fungus produces dwarf shoots when this disease affects the tree; and the seeds produced therefore inherit these genetics. For example, the Chinese Elms, Japanese Black Pines and Trident Maples are three species of Bonzai Trees that suffer from genetic modification due to fungus.
So, with this one exception there are no specific seeds that will produce a Bonzai Tree; therefore it is...