You can grow dwarf trees.

If a garden is a artificial paradise to be contemplated, and to be walked around,
a dwarf tree, that is BONSAI in Japanese, is a artificial lovely daughter to be reformed by trimming with her father's hands. And then, if the master dies, and the tree is free from a artificial reforming, will the BONSAI return to the wildness of nature ?

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These images are made with the software which can generate kinds of dwarf trees. The software is called "Virtual BONSAI".