I have found that most of the heirloom hard corn for flour or hominy tends to grow to 10 to 12 feet tall. We've been growing a red corn variety for the past 2 years, but it is not the best corn for hominy so we're going to try another type of corn next year. We will probably grow what is referred to in the seed catalogs as indian corn, the multi-colored decorative corn. That is easy to process into hominy.