FIG. 1 is a perspective view of a tree collar showing my new design;
FIG. 2 is another perspective view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a rear elevational view thereof;
FIG. 5 is a left side elevational view thereof;
FIG. 6 is a right side elevational view thereof;
FIG. 7 is a top plan view thereof;
FIG. 8 is a bottom plan view thereof;
FIG. 9 is a perspective view of the tree collar where the tree collar is in a first configuration of use; and,
FIG. 10 is a perspective view of the tree collar where the tree collar is in a second configuration of use.
The broken lines in the drawings depict portions of the tree collar that form no part of the claimed design.