We claim the ornamental design for a portable garden container, as shown and described.
FIG. 1 is an exploded perspective view of a portable garden container, showing our new design. The design is comprised of three portions, including a water hose, a container, and a rolling tray;
FIG. 2 is a perspective view thereof;
FIG. 3 is a top plan view thereof;
FIG. 4 is a bottom plan view of the container portion thereof, the other portions not shown for ease of disclosure;
FIG. 5 is a top plan view of the rolling tray portion thereof, the other portions not shown for ease of disclosure;
FIG. 6 is a bottom plan view thereof;
FIG. 7 is a left side elevational view thereof, the right side elevational view being a mirror image thereof; and,
FIG. 8 is a front elevational view thereof, the rear elevational view being a mirror image thereof.