Cynanchum
Genus Cynanchum – The Swallow wort
Description:
Cynanchum is a fascinating genus of plants within the Apocynaceae family, ranging from climbing vines to unusual caudiciform and succulent species. Many of the succulent Cynanchums found in southern Africa are prized by collectors for their swollen stems, underground tubers, and intricate growth habits. Depending on the species, plants may produce slender twining stems, attractive foliage, and delicate star-shaped flowers that are often highly ornamental. Some species develop impressive caudexes with age, making them sought-after additions to collections of rare succulents and caudiciform plants.
These remarkable plants have evolved to survive harsh environments by storing water in their stems or underground tubers, allowing them to endure extended dry periods. Their unusual forms and seasonal growth patterns make them especially rewarding for enthusiasts who appreciate unique and uncommon plants.
General Care:
- Light: Prefers bright light to partial sun. Most species appreciate morning sun and protection from harsh afternoon heat.
- Water: Water moderately during the active growing season, allowing the soil to dry between waterings. Reduce watering significantly during dormancy.
- Soil: Requires a very well-draining succulent mix with added grit, sand, or pumice.
- Temperature: Enjoys warm conditions and should be protected from frost. Ideal range is 10–30°C.
- Feeding: Feed lightly during active growth with a diluted succulent fertilizer.
- Maintenance: Growth habits vary by species. Some may require support for climbing stems, while caudiciform species benefit from careful watering and excellent drainage.
With their unusual forms, fascinating growth habits, and collector appeal, Cynanchum species offer something truly different for the succulent enthusiast and are a rewarding addition to any rare plant collection.
Below are some species we are familiar with…
