Crassula perforata is a small shrubby and sprawling succulent up to 18 inches (45 cm) tall. The stem is erect, fleshy, later prostrate and woody. Short, broad ovate, opposite, gray-green leaves edged in pink color with small whitish or pink dots on the margin, up to 0.8 inch (2 cm) long and up to 0.5 inch (13 mm) wide. The flowers are very small, star-shaped and white in color.