How to Grow and Care for Mistletoe Cactus

Mistletoe cactus, known scientifically as Rhipsalis, is a distinctive plant with trailing, thread-like stems. Unlike the desert cacti many are familiar with, this is an epiphytic or “jungle” cactus. In its native habitat, it grows on other plants, such as in the crook of a tree branch. This growth habit gives it a cascading appearance, making it a popular choice for hanging baskets.

Mistletoe Cactus Care Guide

Light

As a plant native to rainforests, the mistletoe cactus thrives in conditions that mimic the filtered light of a forest understory. It prefers bright, indirect light, such as from an east-facing window or a spot several feet from a south or west-facing window. Direct, intense sunlight can cause the delicate stems to scorch. Rotating the plant occasionally encourages even growth on all sides.

Water

While this plant is a cactus, it requires more regular watering than its desert counterparts. A good rule of thumb is to water thoroughly when the top one to two inches of soil feel dry. Overwatering is a common issue and can lead to root rot, so ensure the pot has adequate drainage. Allowing the soil to dry out completely can cause the stems to shrivel.

Soil

Mistletoe cactus needs a rich, well-draining substrate that provides good air circulation for its roots. While a commercial cactus mix can be a starting point, amending it is beneficial. A blend of one part standard potting mix, one part perlite, and one part orchid bark provides the ideal structure and drainage.

Temperature and Humidity

This tropical native prefers warm and humid conditions. An ideal temperature range is between 60 and 80 degrees Fahrenheit (16 to 27 degrees Celsius). It is not frost-tolerant and should be protected from temperatures below 50°F (10°C). While average household humidity is often sufficient, providing extra moisture helps the plant thrive. Placing a humidifier nearby or setting the pot on a pebble tray with water are simple ways to increase humidity.

Fertilizer

During the spring and summer growing season, the mistletoe cactus benefits from regular feeding. Use a balanced, water-soluble fertilizer diluted to half-strength once a month. Suspend fertilizing during the fall and winter when the plant’s growth slows.

How to Propagate Mistletoe Cactus

Mistletoe cactus is propagated through stem cuttings, a process best done in spring or summer when the plant is actively growing. To begin, select a healthy stem and take a cutting at least a few inches long using clean scissors or shears. Allow the cut end to dry and form a callus over a day or two, which helps prevent rot when planted.

Once the cutting has callused, place it into a pot with the same well-draining soil mix used for the parent plant. Keep the soil lightly moist as the new roots develop. Within a few weeks, the cutting should establish its root system and show signs of new growth.

Common Problems and Solutions

Yellowing or mushy stems are a clear indicator of overwatering and potential root rot. This happens when the soil remains too wet. To resolve this, allow the soil to dry out more between waterings and ensure your pot has excellent drainage.

If you notice the stems are shriveling or wrinkling, the plant is likely underwatered. It does not tolerate complete dryness for extended periods. Increase your watering frequency slightly, making sure the soil becomes evenly moist but not saturated.

Mistletoe cactus can attract pests such as mealybugs or scale. These insects can be identified by their cotton-like appearance or as small, brown bumps on the stems. A simple treatment involves dabbing the pests with a cotton swab dipped in rubbing alcohol or using an insecticidal soap.

A sparse or “leggy” appearance with long, stretched-out stems is a sign the plant is not receiving enough light. This is the plant’s attempt to reach for a better light source. To encourage fuller growth, move the plant to a location where it will receive more bright, indirect sunlight.