Diascia, sometimes called twinspur, is a delicate, frothy type of plant. My Darling Tangerine will grow in an upright fashion, great for cooler weather color. Diascia has small, oval-shaped leaves that are dark green. Its flowers are small but profuse. Flower colors include pastels, vivid oranges and reds, and deep plums. A single long top petal makes it look like the flower is sticking out its tongue. Below this are two side petals with horn- or spur-like projections, which give diascia its common name.