`Kiowa' is the eighth in a series of erect-growing, high-quality, productive blackberry cultivars developed in the breeding program of the Arkansas Agricultural Experiment Station. Large fruit size is the most outstanding characteristic of `Kiowa', with fruit size usually 30% heavier than `Shawnee'. `Kiowa' has generally been less productive than `Shawnee' but similar in productivity to `Choctaw'. First picking of `Kiowa' is usually 3 days later than that of `Shawnee'. The harvest season for `Kiowa' is long, with fruit commonly ripening over a 6-week period. Fruits of `Kiowa' are firmer than `Shawnee' and `Choctaw'. Plants of `Kiowa' are not as vigorous or erect as are plants of `Shawnee', although row establishment has been good using either plants or root cuttings.