What is the purpose of the wire on the bonsai?
Copper or aluminum wire is wrapped around branches, or even the trunk, to manipulate the shape of the tree. The wire is wrapped so that the limb or trunk can be safely moved to the desired position. The wire is left in place long enough to achieve the desired position of the branch, yet not constrict the growth of the plant. Be sure to cut it off before it constricts the limb or trunk as this will leave scars. There is no set length of time, as it depends on the growth rate of the tree at the time of wiring. Young, faster growing trees may need the wire removed in a month or so, yet older trees may be able to retain the wire for up to a year without scarring.
