I just wonderd if Iris pseudoacorus got in there.... but I agree self seeding is very likely! This is a common problem with gardeners not realising cultivars may be 'sexually active' Peter (UK) On Sat, Feb 2, 2013 at 9:21 PM, <Theladygardens@aol.com> wrote: > I imagine she hasn't divided them for years. What happens is they get > pollinated, she doesn't remove the seed pods, the pods pop open and spill > all > among her hybrid iris. >