Chasmanthium laxum is a grass native throughout the southeast. It naturally occurs in moist environments, and grows well in sun to shade. It grows vigorously when cultivated and separates well, making it a good plant for restoration projects. It has long, upright, delicate seed heads that make it an attractive plant for a garden or green roof. Chasmanthium laxum is an important host to several native butterflies, and birds and small mammals eat the seeds. It is fairly deer resistant.