The Black Rabbits Foot Fern (Davallia fejeensis) is a captivating houseplant known for its unique furry, dark rhizomes that resemble a rabbit’s foot. These rhizomes spread across the soil surface, giving the plant its common name. Originating from tropical regions like Fiji, this fern adds an exotic touch to indoor spaces with its delicate, lacy fronds. Its adaptable nature makes it a favored choice among plant enthusiasts.
Black Rabbits Foot Fern Care
Light
The Black Rabbits Foot Fern thrives in bright, indirect light, mimicking its natural habitat beneath a tree canopy. A north or east-facing window is ideal, as direct sunlight can scorch its delicate fronds and turn the rhizomes brown. While it tolerates lower light, insufficient light leads to slower growth and less lush foliage.
Watering
Consistent moisture is important for the Black Rabbits Foot Fern, but overwatering can cause root rot. Water thoroughly when the top inch (2.5 cm) of soil feels dry, allowing excess water to drain completely. Using lukewarm or room-temperature water is preferable. While the plant’s rhizomes store some moisture, prevent the soil from drying out completely.
Humidity
High humidity, ideally 50-80%, is preferred by the Black Rabbits Foot Fern, reflecting its tropical origins. In dry indoor environments, increase ambient moisture by placing the plant on a pebble tray, misting regularly, or using a humidifier. Grouping several humidity-loving plants together also creates a localized microclimate.
Temperature
Maintaining a stable temperature range is important for the Black Rabbits Foot Fern. It prefers indoor temperatures between 60-75°F (15-24°C) during the day. Nighttime temperatures should not drop below 55°F (13°C) to prevent stress. Avoid sudden temperature fluctuations or cold drafts, as these can lead to reduced growth or browning of leaf tips.
Soil
The ideal soil mix for a Black Rabbits Foot Fern should be well-draining, airy, and rich in organic matter. A suitable blend includes peat moss for moisture retention, perlite for aeration, and bark or coarse sand to prevent compaction. Good drainage prevents waterlogged conditions and root rot. The rhizomes have shallow roots, primarily absorbing water from the topsoil, so a light and airy mix supports their growth.
Fertilizing
During the active growing season (spring through summer), the Black Rabbits Foot Fern benefits from occasional fertilization. Apply a balanced liquid fertilizer, diluted to half or quarter strength, once a month or every 4-6 weeks. Avoid over-fertilizing, as it can lead to salt buildup and harm the plant. Reduce or stop fertilization during fall and winter when growth naturally slows.
Potting and Repotting
When potting or repotting a Black Rabbits Foot Fern, consider its rhizomatous growth. These ferns prefer shallow, wider pots or hanging baskets, allowing their furry rhizomes to spread and cascade. The rhizomes must sit on top of the soil surface and not be buried, as burying them leads to rot. Gently lay them on the potting mix, pinning them in place if needed.
Repotting is needed every 2-3 years, or when the rhizomes outgrow the container, ideally in spring. Choose a new pot only slightly larger than the previous one. Carefully remove the fern, gently loosen crowded roots, and position it in the new container, ensuring rhizomes remain exposed on the soil surface.
Propagating Your Fern
Propagating the Black Rabbits Foot Fern is primarily achieved through rhizome division. Carefully separate a section of a mature rhizome with at least one or two fronds attached. Use a clean, sharp knife or scissors to cut a 2-4 inch section. Place these divisions on the surface of a moist, well-draining potting mix.
For successful rooting, newly potted divisions require warm temperatures and high humidity. Maintain consistent soil moisture without making it soggy. New growth typically emerges within a few weeks, signaling successful rooting.
Common Problems and Solutions
Browning or crispy fronds often indicate insufficient humidity or underwatering. Increase humidity through misting, pebble trays, or a humidifier. Adjust the watering schedule to ensure consistently moist, but not waterlogged, soil.
Yellowing leaves can signal overwatering, nutrient deficiencies, or too much direct light. Resolve overwatering by checking soil moisture and ensuring proper drainage. If lighting is too intense, move the plant to a spot with brighter indirect light. Stunted growth may point to insufficient light, low humidity, or a lack of nutrients; optimize conditions and provide diluted fertilizer during the growing season.
Common houseplant pests like spider mites, mealybugs, and aphids can affect Black Rabbits Foot Ferns. Regularly inspect the plant and promptly address infestations with organic solutions like neem oil or insecticidal soap. Maintaining good air circulation also helps deter pests and fungal problems.