Rhipsalis crispata, known as “Wavy Mistletoe Cactus,” is an appealing houseplant. This Rhipsalis species features delicate, ribbon-like segments with a subtle wave or scalloped edge, often displaying pinkish tips. Unlike desert cacti, Rhipsalis crispata is an epiphytic plant, native to tropical rainforests of South America, particularly Brazil. Its cascading form and trailing stems make it a favored choice for hanging baskets, creating a natural ambiance indoors. Its appearance and adaptable nature make it popular.
Rhipsalis Crispata Care
Light
Rhipsalis crispata thrives in bright, indirect light, mimicking its natural rainforest understory habitat. Direct, harsh sunlight can scorch its delicate stems, causing damage. Ideal indoor placement is near an east or west-facing window for morning or late afternoon sun. North-facing windows also provide consistent indirect light. While it tolerates lower light, sufficient brightness encourages growth and blooming.
Watering
Despite being a cactus, Rhipsalis crispata requires more consistent watering than desert varieties. Keep the soil lightly moist during its active growing season in spring and summer. Allow the top inch or two of soil to dry out between waterings to prevent root rot. During winter, reduce watering frequency, allowing soil to dry more thoroughly. Using soft water, like rainwater, is beneficial due to sensitivity to lime in tap water.
Soil
The ideal soil mix for Rhipsalis crispata needs excellent drainage and aeration. A well-draining cactus or succulent mix forms a good base. Amend it with orchid bark, perlite, pumice, or coarse sand to improve drainage and prevent waterlogging. A slightly acidic, nutrient-rich, humus-rich substrate is preferred.
Temperature and Humidity
Rhipsalis crispata flourishes in warm and humid conditions. An ideal temperature range is 18°C to 24°C (64°F to 75°F), though it tolerates temperatures as low as 16°C (60°F). Avoid exposure to temperatures below 10°C (50°F), especially in winter.
Maintaining adequate humidity, between 50% to 70%, is beneficial for healthy growth. In dry indoor environments, especially with winter heating, increase humidity through various methods. Place the plant on a pebble tray, use a room humidifier, or group it with other plants for a humid microclimate. Regular misting also helps.
Fertilizing
Rhipsalis crispata is not a heavy feeder, but benefits from regular fertilization during spring and summer. A balanced liquid fertilizer, diluted to half strength, is recommended. Fertilize about once a month from April to September to support growth and flowering. During cooler autumn and winter months, when growth slows, cease fertilization for plant rest. Over-fertilization can lead to nutrient burn, so adhere to dilution and frequency.
Propagating Rhipsalis Crispata
Propagating Rhipsalis crispata is straightforward, with stem cuttings being the common method. The ideal time is during the plant’s active growing season in spring or summer. Select healthy, mature stems, aiming for segments 8 to 15 centimeters (3 to 6 inches) long.
Use a clean, sharp knife or scissors to make a precise cut just below a node. After taking cuttings, allow them to air dry in a shaded area until the cut ends form a callus. Callusing prevents rot. Prepare a small pot with a well-draining potting mix. Insert the callused end of each cutting about 3 to 4 centimeters (1 to 1.5 inches) deep into moist soil, firming the substrate. Place potted cuttings in bright, indirect light and maintain a slightly moist soil environment. Roots form within weeks, and new growth indicates establishment.
Common Problems and Solutions
Rhipsalis crispata is a resilient plant, but issues can arise from improper care. Shriveled or wrinkled stems indicate underwatering or low humidity. Increase watering frequency, ensure topsoil doesn’t remain dry, and boost humidity to rehydrate. Mushy or yellowing stems and wilting indicate overwatering and root rot. Allow soil to dry significantly between waterings and confirm adequate drainage.
Lack of growth or sparse foliage suggests insufficient light; move to a brighter location with indirect sunlight for healthier development. Rhipsalis crispata can encounter pests like mealybugs. These small, white, cottony insects feed on plant sap from leaf axils and stems. Remove small infestations by wiping with a damp cloth or a cotton swab dipped in rubbing alcohol. For persistent issues, use horticultural oil sprays, but test on a small area first as some plants are sensitive.