I planted Roemer’s Hip-Happy in my NJ zone 7b alkaline clay garden in fall of 2022. It overwintered like a boss and grew strong a full last summer. The leaves are healthy, the flowers are sweet and plentiful, and it makes *so* many hips. This was my first year trying to grow seedlings, and I had by far the highest germination rate on my Roemer’s seeds. It’s a very cheerful, healthy shrub in the landscape. The bees love it (hence the many many hips!). It copes well with my slow-draining clay and seems immune to black spot, right up until late fall when the leaves start going wonky in preparation for winter. Overall, this is a wonderful rose in the landscape.

I echo Donna's eval. No black spot in my middle GA garden (zone 8b). Has produced virtually thorn free OP offspring.

I purchased this rose from ARE last year and it arrived very happy and healthy. Although it grew very quickly and had abundant blooms (especially for a first year rose) it developed a very severe case of mildew in its first year. It was covered in mildew the entire summer. As it was container grown I tried the rose in different areas of the yard and two separate organic treatments for the mildew. The only result was that it bloomed and bloomed but the mildew never abated.

Despite the disease issue this rose has great vigor. Yesterday I pulled all the roses that overwintered in containers buried in the garden and of those 12 or so roses RHH easily has the most buds and looked great with no die back. I'm thinking that perhaps I should plant it in the ground and see if it prefers that environment to container cultivation.