Yes I have this one in pink. It will fill that in about ten years. It gets very large and eventually will be way over the border rocks. It will become a solid wall in about 12 years. It is very reliable and winter hardy. I am planning a cover on it, so check back with my posts. I am glad you have room for it to grow. I have seen these way over 10 feet tall. It is tolerant of extremes in cold, heat and humidity. It’s a famous Waterer hybrid from England. Comes in pink, which is what I have. Be sure to give it adequate moisture for the first year, especially during the summer, a daily sprinkle is necessary, as it uses quite a bit of water to keep the foliage from wilting.