Uniola paniculata

Common Names

Seaoats, Sea Oats, Seaside Oats, Araña, Arroz De Costa

Summary

Sea oats (Uniola paniculata) is a native warm-season perennial grass of the Poaceae family that dominates coastal dunes along the Atlantic and Gulf coasts from Virginia to Texas, with a tall upright habit reaching about 4–6 feet and narrow green leaves up to 24 inches long, its large showy panicles of flat spikelets rise above the foliage and mature to light brown, often drooping at maturity, while a deep, spreading root and rhizome system anchors shifting sands and stabilizes coastal dunes, being wind-pollinated and highly tolerant of salt spray, drought, and sandy soils, forming dense dune-stabilizing stands. In cultivation, Sea Oats prefers full sun and sandy, well-drained soils, tolerates drought, salt spray, and brief inundation, and requires minimal maintenance once established, propagation is by seed or division, and a spreading rhizome system forms large clumps that require space, with uses including erosion control, dune stabilization, and coastal landscaping, hardy in USDA zones 6–11, and pest problems are not commonly reported.

Lifecycle

Perennial

Height

4-6 feet

Spread

2-5 feet

Hardiness Zones

Zones 7-11

Sunlight Requirements

Ideally full Sun. Tolerates partial shade.

Soil Type

Loose, well-drained sandy soil

Soil Drainage

Well-drained, sandy soils

Soil pH

6.0-8.0

Bloom Color

Brown

Bloom Time

Spring through Fall, with peak in Summer

Foliage Color

Green

Fall Foliage Color

Green

Leaf Lifecycle

Deciduous

Growth Rate

Slow

Seasons of Interest

Spring, Summer, Fall, Winter

Propagation Methods

Seeds, Division, Sprigs

Attracts Wildlife

Attracts birds