You might find this new floribunda interesting. It might be cold hardy enough. The introducer promotes it as highly disease resistant. I know it is in California where it was bred. Kim

Here is a link that might be useful: Thrive!

'Eutin' is often described as the most blackspot-resistant red floribunda, but I haven't grown it.

Then of course there's the original 'Knock Out' rose, which is like a vigorous floribunda.

Here is a link that might be useful: Eutin at HMF

Home Run is very disease resistant and blooms it's fool head off all summer!

Thank you all for taking time to advise a newbie. I'll be checking out all three suggestions. Happy holidays and good growing.

You might want to look at the Kordes roses at Palatine Roses web site. I have been very pleased with the black spot resistance and blooms of the Fairytale roses and there are smaller varieites suitable for borders and pots. I haven't tried these smaller ones but love the shiny healthy leaves of the others I have tried.

I second lizalily's recommendation on checking out Palatines Roses as they sell numerous ADR rated roses---see link below to a previous GW thread on ADR roses.

Here is a link that might be useful: GW discussion on ADR roses

I recommend 'valentine'- the 1951 floribunda by Swim. I have found it to be heat resistant, disease resistant and everblooming. With perle d'or, rouletti, reve d'or, leonie lamesch in it's lineage- it has to be tough.

http://www.helpmefind.com/rose/l.php?l=2.2525