Beautiful at all stages, bearing small clusters of mid pink, medium-large, cupped rosettes. They have a strong, delicious myrrh and heather honey fragrance. The arching branches are clothed in glossy, dark foliage. Named after the gothic revival house in Twickenham, London, built by Horace Walpole.Beautiful at all stages, bearing small clusters of mid pink, medium-large, cupped rosettes. They have a strong, delicious myrrh and heather honey fragrance. The arching branches are clothed in glossy, dark foliage. Named after the gothic revival house in Twickenham, London, built by Horace Walpole.