The frost-free season is 95 to 120 days. These are the Elijah , Pigtail , and Owsel soils. Elijah soils occur on the same landscape as the Roseworth soils. Pigtail soils occur in depressions on terraces. Elijah and Pigtail soils are moderately deep to a hardpan.
Owsel soils occur on terrace sideslopes, and are very deep.
Roseworth soils are used mainly for rangeland, wildlife habitat, and irrigated cropland. The dominant natural vegetation is Wyoming big sagebrush, Thurber needlegrass, Sandberg bluegrass, and bottlebrush squirreltail. Irrigated crops are mainly wheat, corn silage, beans, barley, alfalfa hay, and pasture. Roseworth soils are of moderate extent in south central Idaho. Twin Falls County, Idaho, 1992.