Pennie Black Baby Blue Eyes. Previous pinner wrote: "Here is an annual that's 'as pretty as a picture.' There's an incessant parade of rich deep purple to black flowers with a scalloped silvery-white edge."
Tulipa 'Cafe Noir' - Brooding near-black flowers top the stout stems of this single late tulip. Excellent in late spring and early summer bedding schemes, its rich chocolate-red colouring looks great as a contrast to creamy whites and yellows, or toned with soft pinks.
The Black Hero Tulip — features peony-form double flowers of a lustrous maroon so dark it shades to black. Flowers are 4 to 5 inches across and carried on strong 22” stems. Blooms late April into early May.
The color of Trifolium 'Dark Dancer' is somewhere between chocolate and dark purple. This variety of white clover is a good edging plant or ground cover and is hardy in zones 4-10. A Dark Dancer Trifolium plant in a 4.5-inch pot is $7.95 from Easy to Grow Bulbs.