Sow after last frost three to four inches and thin the plants once up to a spacing of six to eight inches. Rows should be a good 30 or 42 inches apart with this spacing, which matches common widths of garden beds.
Some years corn needs very little attention, but in dry years it will need irrigating. It thrives during the summers when subtropical weather settles in for a couple months. Many critters love to munch on corn, including rodents and, most notoriously, raccoons. Avoid growing corn near chicken coops or pest attractants, and be sure to surround your garden with a good critter fence.
Allow ears to mature and dry on the stalk. When dry, husk and remove kernels from cob. For best popping results, freeze the dry kernels before popping the traditional way, on the stove top.