Page 159 - Tài liệu cây cảnh Bonsai4me Bonsai Basics

A large bonsai such as this can take 6 hours or more to fully wire.
Removing Bonsai Wire
As a tree grows, the branches very slowly increase in size. Any wire on the
branches can become tight and as it does, mark the bark. In severe cases, the
wire can cause coiling scars where the wire has bitten deep into the branch.

Light marking will grow out within a year or two but heavy marking can be
permanent. Wire marks are always considered ugly and should be avoided by
removing the wire before it has a chance to dig into the bark.
It is always recommended that the wire be removed by cutting each turn with
some wire cutters. Trying to unwind the wire can easily lead to dislodged buds,
torn leaves or broken branches. However, there are many enthusiasts who do
unwind their wire so it can be reused…….great care must be taken if doing so.
Don't bother unwinding copper wire as it is not possible to remove kinks
from it after use. I tend to reuse heavier, more expensive gauges of aluminium
wire on my trees still in training (potentsai) but have learnt to my cost that it is
rarely worth trying to unwind and reuse narrow gauge wire used for thin
branches. These branches are the ones that tend to get damaged!