Question: what are hardy perennial flowers?
Answer: Columbine. Columbine is a woodland style of plant. ...  Astilbe. Astilbe is at the top of my list for one special reason. ...  Shasta Daisy. ...  Gaillardia. ...  Coneflowers. ...  Salvia. ...  Helleborus – Lenten Rose. ...  Hosta.