Inland Sea Oats
Chasmanthium latifolium
Inland sea oats is a 2-4 ft., clump-forming, perennial grass bearing large,
drooping, oat-like flower spikelets from slender, arching branches. These
are followed by graceful drooping seedheads which begin a bright green
and gradually turn tan by fall. The grass’s native habitat is shaded slopes,
low thickets, and stream banks.
Planting Sites: The grass grows best in moist sands, loams or clay soil in full shade or part shade. Will grow in full
sun with lots of water, but leaves turn yellowish.
Planting Instructions: Dig hole slightly larger than, but the same depth as, the nursery container. Carefully remove
plant from container and gently loosen any compacted soil or roots around the root ball. Plant at the same depth
as the soil in the container. Add 2 to 3 inches of mulch.
Watering Instructions: Water well after planting, using a root stimulator mixed according to directions. For about 3
months, water deeply when top 1 – 2” of soil is dry to promote deep roots that will withstand drought. Skip a
watering after a rainfall of ½” to 1”.
Comments: One of the few native grasses that will grow well in shade. Attracts birds and butterflies. Larval host for
several butterflies. Birds use stems and leaves for nests and eat the mature seeds. Seedheads are pretty in dried
arrangements. Highly deer resistant.
Planting and care instructions provided by the Lindheimer Chapters of the Native Plant Society of Texas