Hang the framed-lattice panels from the porch with either 3- or 4-inch strap or T-hinges. Two hinges are sufficient for a panel that's shorter than 8 feet, but use three hinges on one that's longer. Screw the hinges to the frames first, then set the panels in the openings under the porch. Slip a pry bar under the panel and raise it up tight against the porch fascia. Use a drill/driver to screw the hinge to the porch.
Check to make sure the panel swings up and down smoothly. If it drags on the ground, use a shovel or rake to remove some dirt from in front of the panel. If there's a large gap beneath the panel, add soil, then smooth it out to create a consistent space between the panel and ground.