Not actually black, but a very dark blue, this rare Morning Glory is nonetheless a knockout. Vines are vigorous, growing ten feet or more, even in the far north, and the 3 inches diameter flowers have white throats. Very easy to grow, and will self sow.
Morning Glory 'Kniolas Black Night' Ipomoea purpurea, Convolvulus purpureus, Pharbitis purpurea Half-hardy Annual An abundance of very attractive purple - black flowers with cerise throats, covering this very vigorous climber. Ideal planted in a sunny situation, up trellis or left to ramble amongst other climbers or shrubs. Climbs to 180-240cm (6-8ft).
Jackmanii clematis. Yes, I'm obsessed with clematis. They are my favorite flowering vines. I will be planting my first Jackmanii this spring. It will be years before it ever looks like this--assuming I'm lucky enough mine becomes as beautiful and big as this one!