I am having quite a battle with my hostas up in Wisconsin. My soil is sandy crap, and I am finding many of my plants are getting smaller - and after 7 years, I'm starting to lose some. So far, Empress Wu is holding her own - we shall see what shape she is in this May when I get back up there. I have started a flower bed across the street from my property which has better soil, I am considering moving many of my favorites over there.