I don’t grow this rose but being a Kordes it probably has very good disease resistance to blackspot.

I have one! It got munched on by deer but is trying to bloom again. Will try to get a pic and a whiff tomorrow. So far no black spot in a no spray garden

I can't remember if this is my second or third season growing Polar Express. Either way, it's been a good rose so far and is very disease resistant. The individual blooms aren't anything to write home about, but its overall appearance is nice.

Here's mine from earlier this year before the JBs started eating everything.

Full bush shot with Earth Angel at top far right behind PE and Lindee on left next to PE:

This is my first year with PolarExpress. Have to say I was surprised by the yellow....

Just saw it at the Birmingham botanical garden and it was healthy.