The ornamental design for a plantdisplaysystem, as shown and described.
FIG. 1 is a perspective view of a first embodiment of a plant display
system showing my new design;
FIG. 2 is a side elevational view thereof, the opposite side view being a
mirror image thereof, the broken line showing of a planter is for
illustrative purposes only and forms no part of the claimed desgin;
FIG. 3 is a top plan view thereof;
FIG. 4 is a side elevational view showing a second embodiment of my new
design for a plant display system which is similar to the embodiment shown
in FIG. 1-3 but does not include a basket liner; and,