Northern sea-oats is a grass native to the southern half of Illinois. This warm season, clumping grass has interesting oat-like seed heads that rustle easily in the wind, adding movement to the garden. It self-seeds and may spread aggressively.
This species is native to the Chicago Region according to Swink and Wilhelm’s Plants of the Chicago Region, with updates made according to current research.
- Family (English) Grass
- Family (botanic) Poaceae
- Tree or plant type Grass, Perennial
- Native locale Illinois, North America
- Size range Large plant (more than 24 inches)
- Light exposure Full sun (6 hrs direct light daily), Partial sun / shade (4-6 hrs light daily)
- Hardiness zones Zone 3, Zone 4, Zone 5 (Chicago), Zone 6, Zone 7, Zone 8
- Soil preference Moist, well-drained soil
- Tolerances Clay soil, Dry sites, Road salt, Wet sites
- Season of interest early winter, early summer, midsummer, late summer, early fall, mid fall, late fall
- Flower color and fragrance Other
- Shape or form Arching, Upright