I just put two of these in the ground, oh, maybe ten days ago. So far have not sprayed them and not one black spot to be seen. Hopefully the old rosers have more input. :)

HMF gives it's parentage as Graham Thomas X Gold Badge, which isn't promising on the disease resistance front. Most of the Clements bred roses are probably disease resistant in their climate, but the South has a LOT more disease pressure than Oregon, and disease resistant doesn't mean disease free.

ItÂs been great as no-spray rose in my garden, going year three. Afternoon sun will bleach the bloom. But it can handle part shade well.

The mixing of the not so great genes from the parents sometimes brought out the best features of the offspring.

I just looked at one in a no-spray garden here, and it was clean as a whistle midway through, I think, its second season. I've heard good things about it elsewhere in the South.

I grow it no spray and it is mostly clean. Very few spots. My MHB is in it's third year. Good rose in my opinion. Nice fragrance.
Olga

Third season for me. Exceptional resistance, not quite as good as Knockout, but certainly able to handle a no-spray garden.

Trust me, if Olga says it is black spot resistant than it truly is resistant.