Corn typically grows 4 to 6 feet high, according to Cornell University. The plants need 12 to 18 inches between each plant. It is planted in the early summer when soils have warmed and all chance of frost is passed.
Corn comes in many varieties, including sweet, super-sweet and bi-color. Different types grow to varying heights. Miniature or baby corn produce smaller stalks.
Corn needs full sun and plenty of nitrogen and water to reach its potential. The plant's growth may be stunted or corn husks may be undeveloped without proper care, according to the University of Illinois.