The bat flower (Tacca chantieri) is an exotic plant with flowers that mimic a bat in flight, deep purple, with ruffled wings and long, hanging filaments. Indoor blooms, and those outside in semi-tropical climates, may appear in spring and last until early autumn. Large, attractive leaves surround the bloom. Growing bat flowers requires a little extra bat flower care, but blossoms of this unusual specialty plant makes the extra care of bat flower worthwhile. My mother-in-law grew these successfully for many years..