Bignonia capreolata 'Atrosanguinea' Bignonia capreolata 'Atrosanguinea' is noted for its dark purplish-red flowers (flowers of Bignonia capreolata are orange-red). B. 'Atrosanguinea' will grow much shorter than the species.
Fast-growing cross-vine with deep red buds in spring, which open to reveal a cheery yellow inside. Tubular flowers appear in late spring. Very cold hardy, easy to grow. See picture of the plants.