‘Black Border’ looks similar to our popular variety ‘Black Asia.’ It’s a single to semi-double flower with overlapping petals. The heart of the flower is deep red; the petal edges are black. Adenium growers are producing fewer single flowered varieties so ‘Black Border’ is special indeed. Adeniums thrive when environmental conditions are warm and sunny. ‘Black Border’ is a ready-to-bloom, two-year-old, grafted plant with a thickened caudex.