Chasmanthium latifolium

Northern Sea Oats, River Oats

Chasmanthium latifolium

Photo Credit: Stonehouse Nursery

Chasmanthium latifolium

Photo Credit: Stonehouse Nursery

Chasmanthium latifolium

Photo Credit: Stonehouse Nursery

Chasmanthium latifolium

Photo Credit: Stonehouse Nursery


Chasmanthium latifolium

Northern Sea Oats, River Oats

Grown for its showy, oat-like, drooping seed panicles, this native grass is excellent in mass plantings where reseeding will be welcome. It forms a sturdy, upright clump of bamboo-like, green foliage which turns copper along with the seeds in fall. Best with some moisture, but tolerates drier soils once established.

Plant Details

  • Zone: 4 - 8
  • Height: 3-4'
  • Spread: 3-4'
  • Exposure: Full Shade, Full Sun, Part Shade
  • Soil Moisture: High Water Needs, Low Water Needs, Moderate Water Needs
  • Drought tolerant: No
  • Bloom time: Late Summer
  • Foliage Color: Green Shades
  • Flower Color: Brown Shades, Green Shades
  • Fragrant: No
  • Good Cut Flower: Yes
  • Native: Native Species
  • Deer resistant: Yes
  • Rabbit resistant: No
  • Bee-friendly: No
  • Attracts butterflies: No
  • Attracts hummingbirds: No
  • Groundcover: Yes
  • Roy Diblik Favorite: No

Plant Details

  • Zone: 4 - 8
  • Height: 3-4'
  • Spread: 3-4'
  • Exposure: Full Shade, Full Sun, Part Shade
  • Soil Moisture: High Water Needs, Low Water Needs, Moderate Water Needs
  • Drought tolerant: No
  • Bloom time: Late Summer
  • Foliage Color: Green Shades
  • Flower Color: Brown Shades, Green Shades
  • Fragrant: No
  • Good Cut Flower: Yes
  • Native: Native Species
  • Bee-friendly: No
  • Deer resistant: Yes
  • Rabbit resistant: No
  • Attracts butterflies: No
  • Attracts hummingbirds: No
  • Groundcover: Yes
  • Roy Diblik Favorite: No

Grower Information

Ornamental grasses and grasslike plants vary widely by type. Cool season grasses are generally best planted in the fall prior or in late winter/early spring in the greenhouse. Warm season grasses can be planted in spring and summer for same-season sales. Sedges grow best when planted in spring and summer rather than the fall prior.

Ornamental grasses and grasslike plants grow well in a wide range of growing media types, provided there is adequate moisture-holding capacity and good drainage. While getting established in their finished containers, most prefer to be kept moist, but not saturated.

  • PowerPlug Size(s): 32s
  • Optimal Planting Time: Spring
  • Retail Sales Window: Fall, Summer
  • Moisture in Production: Average, Low
  • Requires Shade in Production: No
  • Vernalization Required for Bloom: Yes
  • Vernalization Beneficial: No