Nigrum Eranthemum is erect, open shrub, the stems sparsely branched unless pinched out at intervals when young. A rich mass of purple foliage adds an elegant dimension to the garden. Wonderful for contrasting with green or gold-foliage plants. Prefers some shade in hot climates. A great accent plant for containers on the porch or patio. The flowers of Black magic are borne on upright spikes. The 4-petaled white flower has a magenta throat, spreading outwards into speckles and dots.