1. A protector, especially for trees, shrubs, columns and garden furniture, characterized in that it comprises at least two protective parts (1), provided with coupling means (3) provided for the coupling of these two protective parts (1) at least one another, where at least one of the protective pieces (1) has a cut (2) on its inner face so that, by cutting (2), a central hole (4) is formed, and perforations (6) are placed around the cut (2).