Sidalcea malviflora ( William Smith Prairie Mallow )
This is an erect perennial with kidney - shaped , shoal - lobed , basal , medium - fleeceable leaves . Grows to 36″ grandiloquent and 18″ wide . Funnel - shaped blossom of ‘ William Smith ’ are dour rose wine - pink , to 2″ across , and tolerate in summer . Locate in full sun and provide pot of water , especially through the summertime if continuous blooms are want ....