Answer: It is really a matter of how you want to use it and what your definition of small is. It can be grown to full size and trained as a small tree, or you can grow it as a shrub. To maximize the colored foliage you would cut it back very hard, nearly to the ground, each winter. This will limit the size to that of a medium shrub. You can also trim it several times during the growing season to keep it at about three feet or so. (Do not prune after mid summer.) I hope this helps.
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