@Cinta....we're in Northern IL our last 2 winters were the worst since 1969 according to DH. and we had a bad summer drought 2 years in a row. Looks like only a few here have had luck - especially with new varieties.
I'm with you on the heucheras although I have Citronelle that is doing great - season 2. A local grower sets up at the grocery and runs good sales and has quality plant material (bought Powis Castle artemesia this week @ 2/$4) so I tend to save my plant budget for specialty plants like the Jack Frost brunnera.....