Rhipsalis pachyptera, often known as the “Climbing Rhipsalis” or “Chain Cactus,” is a unique epiphytic cactus species. It features flattened, segmented stems that can grow quite long and often cascade, making it a popular choice for hanging baskets. Native to the tropical rainforests of Brazil, it naturally grows on trees or rocks, anchoring itself to its host rather than drawing nutrients from it. Its distinctive form and straightforward care make it a popular indoor houseplant.
Rhipsalis Pachyptera Care
Light Needs
Rhipsalis pachyptera thrives in bright, indirect light, mimicking its natural habitat where light is filtered through the forest canopy. Place it near an east-facing window or a few feet from a south or west-facing window for ample light without direct, harsh sun. Intense, direct afternoon sunlight can scorch the stems, leading to discoloration or yellowing. Pale leaves indicate insufficient light.
Watering
This jungle cactus requires regular watering, distinguishing it from many desert cacti that prefer prolonged dry periods. Allow the top inch or two of soil to dry out slightly between thorough waterings. Overwatering is a common issue that can lead to root rot. Adjust watering frequency seasonally, as less water is needed during cooler winter months when growth slows.
Soil Requirements
As an epiphytic plant, Rhipsalis pachyptera naturally grows in tree crevices, where debris provides good drainage and aeration. Therefore, a well-draining, airy potting mix is essential. A suitable mix often includes shredded bark (such as orchid bark), perlite, and peat or sphagnum moss, mimicking its native environment. Standard cactus or succulent potting mixes can work, but enhancing them with additional organic matter and perlite improves drainage and aeration.
Temperature and Humidity
Rhipsalis pachyptera prefers warm temperatures, ideally between 60°F and 85°F (16°C and 29°C), reflecting its tropical origin. Nighttime temperatures should not fall below 41°F (5°C), as the plant is frost tender. High humidity, around 60% or higher, is also beneficial. Increase indoor humidity by placing the pot on a pebble tray, grouping plants, or using a humidifier. Misting, especially in summer, can also help.
Fertilizing
Rhipsalis pachyptera is not a heavy feeder, but benefits from light fertilization during its active growing season (spring and summer). A balanced liquid fertilizer, diluted to half strength, applied monthly or quarterly, supports healthy growth and blooming. Avoid fertilizing during winter dormancy to prevent stressing the plant. Ensure the plant is well-watered before applying fertilizer to prevent root burn.
Propagating Rhipsalis Pachyptera
Propagating Rhipsalis pachyptera is most reliably achieved through stem cuttings. Use sharp, clean tools to take healthy stem cuttings that are at least 4-6 inches long, or contain multiple segments. After taking the cuttings, allow the cut ends to “callus over” for two to three days in a dry spot. This callusing process helps prevent rot once planted.
Once callused, plant cuttings in a well-draining potting mix, similar to that for mature plants. Insert the bottom end about 0.5 to 0.75 inches deep into the soil. After planting, water sparingly, then allow the soil to dry completely before re-watering. Warm temperatures, indirect light, and high humidity encourage rooting within a few weeks to a couple of months.
Common Problems and Solutions
Wilting or mushy stems often signal overwatering and root rot. If these symptoms appear, check the plant’s roots for decay; affected roots may be soft and dark. Adjust the watering schedule to allow the soil to dry more thoroughly between waterings.
Conversely, shriveled or dry stems indicate underwatering or insufficient humidity. If stems appear shriveled, increase watering frequency, but always check soil moisture first. If the plant receives enough water but still seems dry, increase ambient humidity.
A lack of new growth or discolored stems can suggest insufficient light or nutrient deficiency. If stems are pale, move the plant to a brighter location with indirect light. During the growing season, a diluted liquid fertilizer can address nutrient deficiencies, promoting vibrant foliage.
Rhipsalis pachyptera can occasionally be affected by common houseplant pests such as mealybugs, spider mites, and scale insects. Regular inspection of stems and joints helps in early detection. If an infestation is found, wiping affected areas with a cotton swab dipped in rubbing alcohol can remove mealybugs. For broader infestations, apply insecticidal soap to control pest populations.