Landscape gardeners in Hokkaido are expected to have painstaking craftsmanship to hang tree branches so that they would not be broken by the heavy snowfalls during the winter.
Those bonsai trees, like the ones we find in the front yard of the Hokkaido Government office, every one of them are taken care of by the professional hands.
I recall that my grandpa had that knowledge and technique, however, I did not get the chance to learn from him.