Try Venero Gardens - www.venerogardens.com - excellent hosta source. They are near me and absolutely worth a visit if you are ever in Minnesota. A couple owns the place and it is their home, so you need to make an appointment. The yard and gardens cover an acre and they are unbelievable beautiful. They sell very good quality hosta and other plants for very reasonable prices.
I have an Empress Wu that I planted last summer. The leaves are enormous already. Unfortunately got some hail damage early this year, but it just started blooming. The stalks are almost shoulder high, and I'm 5/8" tall.
