Chasmanthium Latifolium is a perennial ornamental grass known by the common names of Northern Sea Oats or Indian Woodoats. The plant grows in USDA plant hardiness zones 3 through 8 in the Eastern United States and Northern Mexico.
Northern sea oats (Chasmanthium latifolium) is a perennial ornamental grass with interesting flat foliage and unique seed heads. The plant provides several seasons of interest and is a good landscape plant for USDA zones 5 to 8. Northern sea oats decorative grass is native to south and eastern parts of the United States from Texas to Pennsylvania. The plant’s name refers to the spikelets that hang from the plant and resemble oat seed heads. The different forms of the grass make growing northern sea oats grass in the garden an excellent choice.
Northern Sea Oats grow in clumps of 1 to 2-1/2 feet in width with long stems that produce many long grass leaves at various intervals along the stem. Leaves droop and arch slightly toward the ground. Leaf color depends on sun exposure. Plants in shadier areas produce darker green foliage whereas full-sun plantings have brighter yellowish green growth. Generally, the plant wants full sun but shows above-average tolerance for part shade, which supports its suitability in woodland environments.
During August and September, green flowers bloom from the stalks. The small flowers grow in flat clusters with points at the end of each flower segment. They somewhat resemble agricultural oats. Flowers droop from thin stems growing off the top of the central stalk. Flowers and mature seed heads are known for rustling in even slight breezes.
Northern Sea Oats provide additional color in fall when flowers turn purplish, and the leaves shift from green to bronze. Clumps of grass dull to a brown color in winter. This species adds interest to dormant winter landscapes. Chasmanthium Latifolium requires little maintenance except for cutting down the clumps in early spring. This grass spreads quickly by seed and represents an excellent choice for naturalizing open landscapes or filling in borders and property lines.Northern Sea Oats