Inland Sea Oats (Chasmanthium latifolium)

Inland Sea Oats

Chasmanthium latifolium

Other Common Names: River Oats, Wood Oats

Top Pick: A graceful native grass with distinctive seed heads that thrives in shade and supports wildlife.

Quick Plant Info

• ☀️ Light: Part Shade to Shade
• 💧 Water: Medium
• 🌿 Type: Perennial Grass
• 📏 Mature Size: 2–4 ft tall × 2–3 ft wide

Description

A native woodland grass with arching foliage and distinctive flat seed heads that add texture and movement.

Inland Sea Oats produces elegant, drooping seed heads that catch light and movement in the garden. It thrives in shaded, moist environments and naturalizes over time through reseeding.

🌼 Why it works

• Excellent shade tolerance
• Unique, ornamental seed heads
• Supports wildlife
• Adds movement and texture

🐦 Wildlife value

Seeds provide food for birds, and the plant offers cover in naturalized settings.

Contributes to habitat structure in shaded environments.

🌱 Where it thrives

Best in part shade to shade with moderate moisture. It performs well in woodland settings, rain gardens, and naturalized plantings.

• Woodland gardens
• Rain garden edges and shaded zones
• Naturalized understory plantings

Soil: Prefers moist, well-drained soil and tolerates clay.

✂️ Growth & maintenance

Spreads by seed and may need occasional thinning if a more controlled look is desired.

💧 Water (establishment note)

Water regularly during establishment; once established, Inland Sea Oats prefers moderate moisture and performs best in shaded conditions.

Pickup Information

Order online and select a pickup time at checkout. Plants are held for your scheduled pickup window.

View Plant Sale Information & Policies