Chasmanthium latifolium 'River Mist'

River Mist Northern Sea Oats

Spring 2012

Spring 2012


Patents: PP#20643

Family: Poaceae

Genus: Chasmanthium

Parent: Chasmanthium latifolium

Category: Grass

Zones: 5 to 8

Size: To 30" tall and wide

Growth Rate: Moderate

Exposure: Filtered Sun, Part Shade


Foliage is variegated with vertical stripes of green and white. Similar to bamboo. White seed heads, some green striping, in late summer, fading to beige and persisting through the winter.


From patent application (inventor: Stever, Karen R. for ITSaul Plants, LLC (Alpharetta, GA)):

The Inventor discovered the new cultivar, 'River Mist', as a naturally whole plant mutation in July 2004. 'River Mist' was selected as a single unique plant amongst 500 seedlings of an unnamed and unpatented plant of Chasmanthium latifolium that were growing in one-gallon containers in a nursery in Alpharetta, Ga.

My Experience: 

I have never really been a fan of the species, perhaps I've never seen a good example. Then I saw photos of this plant and it is now on my must have list. I purchased 3 liners from Santa Rosa in April 2011. I potted them up and then planted out two in late spring. They did very little, did not seem to like the heat. I potted them up again in late summer. In late winter 2012 I planted them out again in the shelter of a Bald Cypress in the Helipad And Tiers garden. Finally got some oats in summer 2012. In spring 2013 I put some in more sun in the Helipad And Tiers garden to see how it would do.

Sources of Information

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