Unknown - Tell us
The willowy-branched stems can reach 5' topped by a widely-branched head of rosy helmets in summer; from the European mtns; a lovely divi...Read Moreder between other perennials or shrubs. Perennial to zone 5.
The willowy-branched stems can reach 5' topped by a widely-branched head of rosy helmets in summer; from the European mtns; a lovely divi...Read More