About Ceropegia woodii Schltr.
Ceropegia woodii Schltr. is an evergreen succulent trailing vine. It reaches 10 centimeters (3.9 inches) in height, and spreads to 2–4 meters (6 feet 7 inches–13 feet 1 inch) in length. Its leaves are heart-shaped, measuring around 1–2 centimeters wide and long. When it receives enough light, its leaves are deep green; under low light conditions, leaves turn pale green. As the plant ages, it develops a woody caudex at its base. Its roots, and occasionally its stems, often form tubers. On stems, these tubers grow at nodes, which is likely the source of its common name rosary vine. Flower shape is generally similar to the flowers of other Ceropegia species. The corolla grows up to 3 centimeters in length, and is coloured a mix of off-white and pale magenta, while the five petals are a deeper purple. Ceropegia woodii is a tender plant. In temperate regions, it is a very popular houseplant, commonly grown in hanging baskets so its long trailing branches can hang down, with leaves spaced out like a row of large beads. Multiple cultivars have been selected, some with variegated leaves. This plant needs excellent drainage, should only be watered when it is dry, and must never sit in standing water. Any excess water should be emptied from the plant saucer after watering. It can only be grown outdoors in subtropical and tropical areas that have a minimum temperature of 15 °C (59 °F). It typically grows best in shady conditions with 3–4 hours of indirect sunlight. This plant has earned the Royal Horticultural Society's Award of Garden Merit, which was confirmed in 2017.