I would think that Dwarf irises would bloom in April in KY. If you go to the AIS website www.irises.org you would fine Ky iris groups on their links & people there could give you the information.
Our dwarf irises usually bloom in early may in MA but last year popped up in April so you don't know especailly if climate change is cropping up. New iris catalogs come out late Jan to April. If the Blyth orders are to be sent directly from Tempo Two in Australia it is out now. If from Keppel it will be the end of Jan. I have heard that he is thinking of just sending out a flyer since he is cutting back.
