Dischidia Nummularia, commonly known as String of Nickels or Button Orchid, is a captivating houseplant. It features small, round, coin-like leaves that cascade gracefully along trailing stems. Native to tropical regions, Dischidia Nummularia is an epiphyte, meaning it naturally grows on trees rather than in soil. It absorbs moisture and nutrients from its surroundings and is considered a relatively easy-care houseplant.
Dischidia Nummularia Care
Caring for Dischidia Nummularia involves understanding its epiphytic origins. Replicating its preferred growing conditions indoors, including the right balance of light, water, and humidity, will encourage healthy growth.
Light Needs
Dischidia Nummularia thrives in bright, indirect light. Placing it near an east or north-facing window is ideal, as direct, harsh sunlight can scorch its leaves. If natural light is limited, supplemental grow lights can provide sufficient illumination. Insufficient light may cause smaller leaves and stretched stems (etiolation).
Watering
This plant prefers its growing medium to dry out partially between waterings. Water thoroughly when the top inch or two of the soil feels dry, ensuring excess water drains completely. Allowing the plant to sit in standing water can quickly lead to root rot. During the active growing season in spring and summer, water every seven to ten days. Reduce this frequency in fall and winter when growth slows.
Humidity and Temperature
Dischidia Nummularia flourishes in a humid environment. Ideal humidity levels range from 50% to 80%. If indoor air is dry, increase humidity using a humidifier or by placing the plant on a pebble tray. Maintaining good air circulation is important to prevent fungal issues. The plant prefers temperatures between 60°F and 80°F (16°C to 27°C), so avoid placing it near drafty windows or heat sources.
Soil and Potting
Dischidia Nummularia requires a well-draining, airy potting mix that prevents waterlogging. A suitable blend often includes orchid bark, perlite, and peat moss or coco coir, mimicking its natural growth on trees. Repotting is infrequent, typically every two to three years, as the plant prefers to be slightly root-bound. When repotting, select a container only slightly larger than the current one with adequate drainage.
Fertilizing
Dischidia Nummularia benefits from occasional fertilization during its active growing season. Apply a diluted balanced liquid fertilizer once a month in spring and summer. Diluting the fertilizer to half strength is a good practice to prevent over-fertilization, salt buildup, and harm to the plant. Withhold fertilization during the fall and winter months when growth slows.
Propagating Dischidia Nummularia
Propagating Dischidia Nummularia is a straightforward process, primarily achieved through stem cuttings.
Select a healthy, vigorous stem with several sets of leaves. Using clean, sharp scissors, cut a section that includes at least three to four nodes. Allow the cut end to dry and callus for one to seven days to reduce rot before planting.
The cutting can be rooted in water or a suitable potting mix. For water rooting, place the cutting in a glass, submerging the nodes and changing the water every few days. For soil propagation, fill a small pot with a well-draining mix, moisten it slightly, and insert the cutting, burying at least two nodes. Creating a humid environment, such as by covering the pot with a clear plastic bag or propagation dome, aids rooting, which takes three to six weeks.
Common Problems
Even with proper care, Dischidia Nummularia can encounter a few common issues.
Yellowing leaves frequently signal overwatering or poor drainage, leading to root rot. Yellowing can also indicate underwatering, insufficient light, or a lack of nutrients. If leaves appear shriveled or dry, it often points to underwatering or low humidity, while a lack of growth might suggest inadequate light or improper watering habits.
Pests such as mealybugs, spider mites, and scale insects can occasionally infest Dischidia Nummularia. These pests suck sap, leading to weakened growth and discolored foliage. Regularly inspecting the plant, especially the undersides of leaves, helps in early detection. If pests are found, they can often be wiped off with a damp cloth or sprayed with water.
Displaying Dischidia Nummularia
Dischidia Nummularia’s trailing habit makes it suitable for various displays. Its long, cascading stems can reach lengths of up to 2-3 feet, creating a dense curtain of foliage.
Hanging baskets are a popular choice, allowing the coin-like leaves to spill over the sides and create a green cascade. Terrariums can also provide a humid environment and showcase the plant’s delicate appearance. Due to its epiphytic nature, Dischidia Nummularia can be mounted on pieces of cork bark or driftwood, mimicking its natural growth on trees. This method allows its roots to cling to the support while its vines trail freely.