Continue hammering nails in a ring around the tree, about one-half inch apart. Doing so will damage an increased number of growth cells as well as increase the concentration of copper in the tree. ... The idea that one copper nail will kill a tree is only true for very small trees, such as saplings.

How long does a copper nail take to kill a tree?

4 Inch Long Solid Copper Nails

Boat building. Science experiments (make a battery with a potato or lemon!) Tree & stump.

How do you attach something to a tree without harming the tree?

For the actual hanging process, the best way to do it is with straps. Any kind of strong fabric or cordage will work, but we definitely really like using flat nylon webbing. You can even glue/sew/staple Velcro to the fabric, which allows you to strap it to the tree without any kind of invasive process for the tree.