top of page
Northern Sea Oats (Chasmanthium latifolium)

Northern Sea Oats (Chasmanthium latifolium)

Chasmanthium latifolium, a clump-forming, upright, ornamental grass grows 2-5' and most often occurs in rich woods or rocky slopes along streams and on moist bluffs. This grass is perhaps most distinguished by the flat, drooping seed heads which hang in terminal clusters on thread-like pedicils from slightly arching stems. Seed heads will flutter when caressed by even the softest of breezes. Seed heads emerge green but turn purplish bronze by late summer. Bright green leaves (5-9" long) turn a coppery color after frost and eventually brown by winter.


Easily grown in average, medium to wet, well-drained soil in full sun to part shade. Tolerant of poor soils, but prefers moist, fertile soils. One of the more shade tolerant of the ornamental grasses. Self-seeds and may spread aggressively. Leaving foliage in place over winter adds interest to the landscape and helps protect crowns from the cold. Cut back to the ground in early spring.


Zone: 3 to 8

Height: 2.00 to 5.00 feet

Spread: 1.00 to 2.50 feet

Bloom Time: August to September

Sun: Full sun to part shade

Water: Medium to wet

Maintenance: Low

Tolerate: Black Walnut


Related Products