The ornamental design for a plantsupportsystem, as shown and described.
FIG. 1 is a perspective view of a plant support system embodying the
present invention;
FIG. 2 is a perspective view of a modified arrangement of the plant support
system shown in FIG. 1 in an expanded and adjusted position; and,
FIG. 3 is a top plan view of the plant support system shown in FIG. 1.
The portion of the ground into which the end portions of the support posts
are inserted, shown in broken dotted lines is are not intended to be part
of the claimed invention.
The broken line showing of ground cover in FIGS. 1 and 2 is for
illustrative purposes only and forms no part of the claimed design.