The description of Rountuit says up to 5' tall and 5' wide. Sounds like yours is living up to that: along the ground and straight up. The bloom looks lovely though; it might be worth waiting for.
My Rugosas never have enough leaves but they flower absolutely constantly so I can't get too upset with them. None of my Hybrid Teas have many leaves now either. When I have an unproductive or nearly dead rose I leave it to take its chances but plant another rose almost on top of it. The result is usually both grow wildly and look ridiculous all squashed together. Oh well...
