The Ric Rac Cactus (Epiphyllum anguliger or Selenicereus anthonyanus) is a striking houseplant prized for its unique, deeply lobed stems that resemble a fishbone or zig-zag pattern. Often called the Fishbone Cactus, it is an epiphytic jungle cactus native to the humid rainforests of Mexico. Unlike desert cacti, it grows by anchoring itself to tree branches, receiving filtered light under the dense canopy. This tropical origin dictates a specific set of care requirements far different from those of traditional desert cacti.
Establishing the Right Environment
The Ric Rac Cactus requires bright, indirect light to flourish, mimicking the dappled sunlight it receives beneath a tree canopy. Placing the plant in an east or north-facing window is ideal, as intense afternoon sun can easily scorch its fleshy stems, causing them to turn pale or brown.
The planting medium must be exceptionally fast-draining and airy for this epiphytic species. Standard cactus or succulent mix is usually too dense and should be amended for proper aeration. An ideal blend includes orchid bark, perlite, and a small amount of peat or coir, allowing water to drain rapidly while retaining slight moisture.
Since this plant originates in humid environments, it prefers higher ambient moisture than most standard houseplants. While it tolerates average household humidity, levels around 40% to 60% are optimal for lush growth. The cactus prefers temperatures between 60°F and 80°F and must be protected from temperatures dropping below 50°F.
Step-by-Step Propagation Methods
Creating new plants from an existing Ric Rac Cactus is typically achieved through stem cuttings. Select a healthy, flat stem segment that is at least three to four inches long, making a clean cut using a sterilized knife or shears. Using a clean tool prevents the transfer of disease to the parent plant and the cutting.
The next step is callousing, which involves letting the cut end dry out completely for 24 to 48 hours. This drying period allows a protective, scab-like layer, known as a callus, to form over the wound. This callus defends against rot-causing pathogens once the cutting is introduced to moisture. Applying rooting hormone powder to the calloused end is optional but can stimulate quicker root development.
The cutting is then ready for planting in a small pot filled with a light, well-draining rooting medium. Insert the calloused end into the soil just deep enough to keep the cutting upright and stable. Placing the pot in a location that receives bright, indirect light is necessary for root formation.
During the initial rooting phase, the soil should be kept lightly moist, but never soggy, to encourage new root development. Many growers find success by loosely covering the pot with a plastic bag to create a mini-greenhouse environment, which increases localized humidity. Roots may take several weeks or a few months to fully establish, requiring consistent, filtered light throughout this period.
Ongoing Health and Seasonal Maintenance
Watering the Ric Rac Cactus requires careful attention. While it needs more moisture than desert cacti, its epiphytic nature makes it susceptible to root rot. Water thoroughly only once the top one to two inches of the potting mix have dried out completely. During the active spring and summer growing season, this may mean watering every week or two. Winter requires a significant reduction in frequency due to the plant’s semi-dormant rest period.
Fertilization should occur during the spring and summer months to support the growth cycle. A diluted, balanced liquid fertilizer applied monthly is generally sufficient. A formula lower in nitrogen and higher in phosphorus can help encourage the plant to produce its night-blooming flowers. Fertilizing is halted entirely during the cooler winter months.
Troubleshooting often involves observing the stems, which are the plant’s primary storage organs. Limp or wrinkled stems indicate dehydration and the need for deep watering. Conversely, yellowing or mushy stems are a sign of overwatering and poor drainage, which quickly leads to stem and root rot. Common pests like mealybugs and scale insects should be addressed quickly by isolating the plant and wiping the stems clean with insecticidal soap.
Repotting is infrequent, generally only needed every two to three years or when the plant becomes severely root-bound. Use a new pot that is only one size larger than the previous one. This prevents the new soil from holding too much excess moisture. Keeping the plant slightly root-bound can occasionally encourage it to flower.