My reasons for potting are the same as Greg and Jen's. I pot to delay because my beds are not prepared and ready for the iris rhizomes. I, of course agree that I would prefer to direct plant the rhizomes, but I decided to plant a lot of Annuals for the Summer (big mistake!) and I'm now slowly cutting out the annuals from the two gardens I have that will house the Iris.
Next year I will not be having any 'mixed' beds. They will strictly be Iris beds.
