Sudangrass only develops fibrous roots and never becomes a noxious weed. Sorghum-sudangrass hybrids resemble sudangrass in habit, but are taller with larger stems and leaves and generally better yields. Introduced from Africa to US in 1909, and from US introduced to South America, Australia, South Africa, Central and North Europe. In US grown mostly from southern Texas to Minnesota and North Dakota in the central grassland regions. Sudangrass has a very wide range of adaptation, growing where summers are hot with a fair summer rainfall.
Crop is very drought-resistant.
Plants grow rapidly from late seeding. Not suited to cool humid temperate regions or to more humid regions in subtropics and tropics. Grows well under irrigation in hot dry regions. Rarely grown above 2700 m in southwest US, and less so farther north. Does not tolerate alkaline, saline, or solonetz soils.