Rhipsalis is a unique and increasingly popular houseplant. Its trailing, segmented stems add a natural element to indoor spaces.
What is Rhipsalis?
Rhipsalis is a genus of epiphytic flowering plants in the cactus family, commonly known as “Mistletoe Cactus” due to its small, berry-like fruits. Unlike most desert cacti, Rhipsalis naturally grows on other plants or rocks in tropical rainforests for support. It absorbs moisture and nutrients from the air, rain, and accumulated organic debris.
These plants exhibit diverse forms, from long, pendulous stems to more bushy, upright varieties. Rhipsalis species are primarily native to Central and South America, but Rhipsalis baccifera is uniquely found in tropical Africa, Madagascar, and Sri Lanka, making it the only cactus naturally occurring outside the Americas. Despite its classification as a cactus, its tropical origins mean its care needs differ significantly from typical desert cacti.
Essential Rhipsalis Care
Rhipsalis thrives in bright, indirect light, mimicking its natural habitat beneath a tree canopy. Direct exposure to intense midday or afternoon sun can scorch its delicate stems, potentially causing them to turn reddish or brown. While it can tolerate lower light, optimal growth and potential flowering occur with consistent indirect brightness.
Consistent moisture is important for Rhipsalis, but the plant should never sit in waterlogged soil. Water thoroughly when the top inch or two of the potting mix feels dry, allowing excess water to drain completely. During cooler months, reduce watering frequency, letting the soil dry out more between applications.
An ideal potting mix for Rhipsalis mimics its epiphytic nature by being well-draining and airy. A blend designed for cacti and succulents, or a mix incorporating shredded bark, perlite, and a small amount of sphagnum moss, provides necessary aeration and drainage.
Rhipsalis prefers warm temperatures, typically 60 to 80 degrees Fahrenheit (15-27°C), and does not tolerate frost. As a jungle native, it appreciates higher humidity levels, ideally above 40%. To increase indoor humidity, mist the plant occasionally, place it on a pebble tray, or use a room humidifier.
During the active growing season, typically spring and summer, fertilize Rhipsalis lightly. A balanced liquid houseplant fertilizer or a cactus-specific feed, diluted to half strength, applied every few weeks or once a month, can support healthy growth. Avoid fertilizing during the plant’s dormancy period in fall and winter.
Propagation and Troubleshooting
Propagating Rhipsalis from stem cuttings is straightforward. Select a healthy stem section, about 4 to 6 inches long, and make a clean cut. Allow the cut end to dry and form a callus for a day or two to prevent rot before planting.
Insert the callused cutting into a well-draining potting mix, burying about half an inch to an inch of the stem. Keep the soil lightly moist but not soggy, and place the pot in a bright, indirect light location. Roots typically develop within a few weeks, and new growth should emerge within a month or two.
Common issues can affect Rhipsalis. Yellowing or mushy stems often indicate overwatering, leading to root rot. If stems appear shriveled or wilted, it usually signals underwatering. Lack of significant new growth can suggest insufficient light or inadequate nutrients, prompting an adjustment to its light exposure or fertilization schedule.