Close-up of the flower heads which are about 2 inches across
by Todd_Boland Oct 5, 2004 11:46 AM
Denver Botanic Gardens 09/01/09.
by plutodrive Sep 3, 2009 6:21 PM
In bud in second year from seed; zone 3 hardy.
by altagardener Nov 2, 2013 6:25 AM
