Mainly because of the growth of plants and the daily maintenance of signboards, it is of little significance to hang them up. Hang too much and it will become a botanical garden. Actually, it depends on the specific place. We have it here. In order to promote the popularization of science, parks, botanical gardens and other places will put signs on trees. The common methods are to tie it with iron wire or nail it directly to the tree, but these methods are not suitable.
Binding with iron wire will often tighten the tree because of its growth. If it is not released in time, it will lead to injuries such as strangulation marks. Nailing a sign to a tree often leads to glue and grease flowing out of the tree. Taiwan Province Kaohsiung Botanical Garden skillfully uses spring to bind the signs, which is stable and will not affect the growth of trees, and is worth learning.