Our specimen of Dortmund draws praise almost every day of its growing season. The large, single red blooms are recurrent and each petal overlaps its neighbor, giving the impression of a delicate ruffle. With a white eye set off by brilliant yellow stamens, the flower alone is captivating. The foliage is equally exceptional with its large, glossy, dark green leaves. Also captivating are the thorns. While quite showy with their reddish hue on new growth, they can rudely interrupt the unwary. Plant this climber in a location where its vigorous canes wont intrude into walkways. Be prepared for spectacular displays.