FIG. 1 is a front elevational view of the plant tag showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a top plan view thereof; and

FIG. 5 is a side elevational view thereof.

The broken lines are shown for illustrative purposes only and form no part of the claimed design.