Aptenia cordifolia is an evergreen and fast-growing succulent, often a short-lived perennial, 250 mm high with glossy succulent leaves and bright magenta pink flowers are distinctive characteristics of this plant, It is a well-known groundcover or creeping plant.

Aptenia cordifolia is a well-known groundcover. It is an ideal plant for coastal gardens as it tolerates sea spray and grows in sandy soil. It can be used in rockeries or outcrops, terraced slopes and along roadside embankments. It requires full sun or semi-shade; it can be planted underneath trees. If grown in unfavourable conditions, the plant will die.

The green leaves are fleshy, flat, heart- to oval-shaped, 60 x 25 mm long, and are widely spaced in pairs or singularly arranged. Water cells are scattered on the leaf surface.

Flowers are purple to red, shiny, small to medium, 15 mm wide and borne singly or in clusters on short flower stalks. Terminal flowers are found in the forks of the branches. The flowers are self-fertilized and flowering occurs from spring to autumn (August to April). Flowers open during the bright hours of the day (midday to early afternoon).