tiarella
River Oats
Eric in SF · CC BY-SA 3.0 · source

River Oats

Chasmanthium latifolium

Purple flowers from June into October, worked by oil bees. It grows wild in 7 of West Virginia’s 55 counties.

Light
Full shade to part sun
Soil
Moist soil
Size
3.5 ft to 5 ft tall, 1.8 ft wide
Flowers
Purple, Jun to Oct
Leaves
Deciduous
Roots
Spreading rhizomes or runners; wants 10 in of soil
Kind
Grass or sedge

At its grown size

River Oats, drawn in a bed

in flowerfall colorbare for winter

What it feeds

Caterpillars
5 kinds of caterpillars
On its flowers
Oil bee (Rediviva ruficornis)

Grows well with

Facts from the Quercus record for Chasmanthium latifolium.