PlantsGrasses & Sedges
Northern Sea Oats


Chasmanthium latifolium
Chicago-region native. Suited to zone 6a.
Flat oat-like seed heads for part shade
EasyGrasses & SedgesAlso Shade & Groundcovers
- Light
- Part shade–sun
- Moisture
- Medium–moist
- Mature size
- 3–4 ft
- Spacing
- 2 ft
- Bloom or harvest
- Seed heads Aug–winter
- How it spreads
- Clump that seeds
- What to buy
- Plants.
- When to plant
- Plant May or September.
In the design
Native south of Chicago and hardy here. It seeds into cracks. Fine in a contained bed. Wrong plant for a small prairie you are trying to keep pure.





