I was given a large pot of the aforementioned several weeks back. They were quite congested in the pot but were easy to remove and split up - I was expecting a battle. I put 2 in a pot in the bog garden and 1 in a pot by the pond. There has been no signs of growth on either of the new pots and the original pot still looks dead and brown. How long do I wait before assuming I was given a pot of dead plants? I thought Iris was virtually indestructible.