Muhlenbergia capillaris. Very popular for it's pink cloud-like inflorescence.

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Ooh very nice,my daughter would love it, and you're in zone 7 and grow it so I would be able to cope with it. Does it mind bright sun all day,cos thats how my back garden is,better soil out there!

Quoting MOBOT, a wonderful online plant culture resource:

"Best grown in sandy or rocky, dry to medium moisture, well-drained soils in full sun to light shade. Best in full sun. Tolerant of heat, humidity and drought, but generally grows taller with consistent moisture. Tolerates poor soils. Does not spread by rhizomes. May be grown from seed. Propagate by seed or division in spring."

Liking it liking it,wonder if its common over here? Not buying online tho but would be nice to find it at Homebase(like your Homedepot or Lowes)