Xerosicyos is a genus of flowering plants in the family Cucurbitaceae. Its name comes from the Greek words "xeros," meaning "dry," and "sicyos," meaning "cucumber." There are three species, all endemic to Madagascar.
Xerosicyos danguyi is a large liana with thick stems and fleshy, round, gray leaves. It is common in cultivation and is commonly called Silver Dollar Vine. Xerosicyos perrieri is a liana with thinner stems and smaller, fleshy, ovate, green leaves. Xerosicyos pubescens is entirely different from the previous species. It forms a large caudex from which deciduous vines emerge. The leaves are lobed and semi-succulent, and they die back during the dry season and prolonged drought.
Growing Conditions
Light: Full sun is best, although Xerosicyos plants can grow in partial shade.
Temperature: During the winter months, keep Xerosicyos at 41°F to 48°F (5°C to 9°C) and water only enough to prevent the leaves from shriveling. USDA hardiness zone 9-11.
Water: These plants are extremely drought-tolerant. A deep soaking once a month will keep the plants looking good. During the active growth period in summer, water potted plants regularly, allowing the soil to dry out before watering again. In winter, keep them dry. Preferably, do not water on overcast, humid, or cold winter days.
Soil: Xerosicyos plants adapt to most soil types, but not soil that is too heavy. Good drainage is desirable. If grown in a pot as an indoor plant, use a soil mix specifically designed for succulents.
Fertilizer: Low food needs. Fertilize Xerosicyos plants only once during the active growing period.
Propagation
These plants are easy to propagate by cuttings or seed in spring. Cuttings grow easily once left to callous for several days and then planted in a well-draining soil mix. Seeds germinate in 14 to 21 days at 21°C.
Links
- Back to genus Xerosicyos
- Succupedia: Browse succulents by Scientific Name, Common Name, Genus, Family, USDA Hardiness Zone, Origin, or cacti by Genus