They occur in the Transvaal and Swaziland. This small, deciduous tree has few branches and the striking flowers occur in mid-summer. They only grow to about 2 or 3 meters tall. They are custom-built to attract birds being red and tubular and as the flowers mature over an extended period of time there are always some in prime condition for the birds, sunbirds, black-eyed bulbuls, Cape White-eye, louries and brown-headed parrots. It is suitable for a small garden and on the Highveld it needs to be against a sunny north-facing wall to prevent frost damage. It grows to its maximum size within two years and prefers a warm summer with moderate rainfall. The bark and the roots are used medicinally. An excellent choice for a bird garden. It has non aggressive roots so can be planted in a pot. It is the larval host plant for the Giant Emperor and the Protea Emperor butterflies and 11 moth species. The name is derived from Greek erythros=red, referring to the red flowers. The seed pods are black and burst open to disperse the red seeds. The seeds are considered to be toxic but no deaths are recorded. The leaves are sometimes covered in bumps which are caused by psyllids which are insects that that live under the bumps. They cause no damage to the tree. They lose their leaves in winter and the new leaves in spring are enjoyed by many worms and caterpillars. Woodpeckers search the bark for wood boring insects.