In public law, it applies that a tree register must be kept. Trees in inhabited or accessible areas for people must be annually inspected by a gardener for disease and deadwood. Deadwood must be removed, danger in storms, diseased trees must be felled as they are not stable. Healthy trees are even protected and may only be touched with a special permit. In private law, this ultimately also applies, only the register and the inspection obligation by a gardener are omitted. Karsten