Sorghum is a genus of numerous species of grasses. It is mostly used as a food grain similar to corn. Its primary use is feed grain for livestock. It self-pollinates and tillers produce large heads.
Sorghum grows best in hot, dry plains. It's native to tropical and subtropical regions of all countries. For maximum photosynthesis a temperature of at least 90 degrees F is needed. It can be cultivated or used as part of a pasture. Moisture is generally unimportant but the tillers will grow larger heads if there is more moisture.
On a local organic farm in southeastern Ohio sorghum is harvested and made in to sorghum syrup and sold in small local shops and farmers market.