The ornamental design for a raised gardenbed, as shown and described.
FIG. 1 is a perspective view of a first embodiment of a raised garden bed, showing our new design;
FIG. 2 is a front elevational view thereof, the back elevational view, right side elevational view and left side elevational view being identical thereto;
FIG. 3 is a top plan view thereof;
FIG. 4 is a bottom plan view thereof;
FIG. 5 is a perspective view of a second embodiment of a raised garden bed according to the invention;
FIG. 6 is a front elevational view thereof, the back elevational view, right side elevational view and left side elevational view being identical thereto;