The ornamental design for a plantingkit, as shown and described.
FIG. 1 is a top perspective view of a planting kit showing my new design;
FIG. 2 is a bottom perspective view thereof;
FIG. 3 is a front elevated view thereof;
FIG. 4 is a rear elevated view thereof;
FIG. 5 is a top plan view thereof;
FIG. 6 is a bottom plan view thereof;
FIG. 7 is a right elevated view thereof;
FIG. 8 is a left elevated view thereof;
FIG. 9 is a reduced top exploded perspective view thereof; and,
FIG. 10 is a reduced bottom exploded perspective view thereof.
The broken lines showing of connection blocks in FIG. 1-10, the broken lines showing of a light system in FIG. 1-10, and the broken lines showing of an irrigation system in FIG. 1-10 are included for the purpose of illustrating environmental structure and form no part of the claimed design.