I never watered or fertilized mine and I think it achieved four feet of prostrate growth in five years. I think maybe it bloomed once during that whole time, probably after a soaking early summer rain. Not a spot of disease on it, though.

I wonder whether this might be a rose a little better suited to coolish summers than most. I wonder too whether it thrives on soil with more dampness than one is used to providing shorter roses budded onto multiflora or Dr. Huey rootstock. I saw it growing in a private garden in California once, long ago. It was in full bloom, but for some reason it struck me as the saddest rose I saw in that garden.