Davallia fejeensis (Rabbit's Foot Fern)

Davallia fejeensis (Rabbit's Foot Fern) - Complete Fern Growing Guide

Davallia fejeensis

Complete Fern Growing Guide – Davalliaceae Family
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Davallia fejeensis botanical illustration Davallia fern, Epiphytic with exposed rhizome, reaching 20-50 cm, native to Tropical Asia, Africa, Oceania. 20-50 cm Epiphytic with exposed rhizome Tropical Asia, Africa, Oceania
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Tripinnate to
20-50 cm
Size
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Coarse orchid bark
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Allow substrate
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15–28°C optimal
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Beginner
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USDA Zones 10–12

Introduction & Discovery

Herbarium discovery illustration Vintage herbarium sheet with pressed frond and compass rose evoking the botanical discovery of Davallia fejeensis. HERBARIUM VIRIARIUM Davallia fejeensis Leg. Botanical Expedition Det. Davallia specialist N E S W Botanical Discovery & Type Locality

Davallia fejeensis is the fern with furry feet. Described by William Jackson Hooker in 1846 in the first volume of Species Filicum (page 156, plate 47B), the species was named for the Feejee Islands — the 19th-century English rendering of Fiji — from where the type material was collected during one of the numerous botanical expeditions probing the Pacific in that era. What sets this fern apart from virtually every other species in cultivation is not its fronds, which are attractive but unremarkable in the broader context of leptosporangiate diversity, but rather its rhizomes: thick, creeping, freely branching stems 8–15 mm in diameter that crawl over every available surface — pot rims, bark slabs, hanging basket edges, wire frames — and are densely clothed in silvery-tan to pale brown peltate scales that give them the unmistakable appearance of furry animal paws. These are the ‘rabbit’s feet’ (or hare’s feet, or squirrel’s feet, depending on your regional common name), and they are both the primary ornamental feature and the organ that makes this species uniquely forgiving as a houseplant. The rhizomes function as water-storage organs, accumulating reserves that allow the plant to survive periods of neglect that would kill a maidenhair or a Boston fern outright. Victorian-era growers discovered this resilience early: D. fejeensis became a staple of the parlour fern craze of the 1860s–1880s, grown in hanging baskets and Wardian cases where the dangling, fur-covered rhizomes provided a talking point that no other plant could match. The species remains one of the most widely sold hanging-basket ferns globally, available in garden centres from Europe to Japan to North America, and its care requirements have not changed in 170 years: bright indirect light, coarse fast-draining substrate, and the discipline to let it dry somewhat between waterings. If you can grow an orchid, you can grow a rabbit’s foot fern — and the rabbit’s foot fern is considerably more forgiving of mistakes.

Kingdom: Plantae
Division: Polypodiophyta
Order: Polypodiales
Family: Davalliaceae
Genus: Davallia
Species: Davallia fejeensis
Frond Type: Tripinnate to quadripinnate, finely dissected, triangular outline; semi-deciduous under drought stress

Discovery & Naming

The botanical exploration of the Fiji Islands began in earnest in the 1830s and 1840s, when European and American naval expeditions systematically surveyed the Pacific for commercial, strategic, and scientific purposes. Fern specimens from Fiji reached the herbaria of Kew and the British Museum through collectors attached to these expeditions, and it was from such material that William Jackson Hooker — at the time Director of the Royal Botanic Gardens, Kew, and the foremost pteridologist of the 19th century — described Davallia fejeensis in 1846. The description appeared in Species Filicum, Hooker’s monumental multi-volume treatise on the world’s fern diversity (volume 1, page 156, with an illustration on plate 47B). The specific epithet fejeensis derives from ‘Feejee,’ the standard English spelling of Fiji in the 1840s, itself an anglicisation of the Tongan pronunciation of the Fijian name Viti. Hooker placed the species in Davallia based on the marginal, cup-shaped indusium — the defining character of the genus as he circumscribed it. The species entered European cultivation rapidly after its description, likely through living material sent to Kew and thence distributed to nurseries. By the 1860s it was well established in the British horticultural trade, appearing in nursery catalogues and in the growing literature on ‘fern culture’ that fuelled the Victorian pteridomania — the fern craze that gripped Britain from roughly 1850 to 1890. D. fejeensis was especially prized for hanging baskets and Wardian cases (the sealed glass terrariums that allowed tropical plants to survive in coal-heated British homes), where the creeping, furry rhizomes dangling over the edges provided a novelty that no other available plant could replicate. The Gardeners’ Chronicle and similar periodicals of the 1870s regularly recommended it for drawing rooms and conservatories. By the early 20th century, the species had spread to nurseries across continental Europe, the United States, and Japan, and today it is propagated commercially by tissue culture and rhizome division on an industrial scale in the Netherlands, Denmark, and Southeast Asia.

Frond Morphology

The frond of Davallia fejeensis has a broadly triangular outline — widest at the base where the lowest pair of pinnae are the longest, and tapering progressively toward the apex. This triangular silhouette is shared with many other davalloid ferns and is a reliable field character for the genus. Total frond length including stipe ranges from 25–60 cm in cultivation, typically 30–45 cm; wild epiphytic specimens on well-lit branches can exceed this. The stipe is 10–20 cm long, wiry, dark brown to almost black at its base where it emerges from the rhizome, transitioning through chestnut brown to green in the upper half. The rachis is green, slender (1–2 mm diameter), and glabrous. The lamina is tripinnate at minimum, and frequently quadripinnate in the basal pinnae — meaning the blade is divided into pinnae, then pinnules, then pinnulets, and sometimes into yet finer segments. This high degree of dissection produces the extremely lacy, delicate appearance that distinguishes D. fejeensis from its coarser relatives. The lowest pair of pinnae are triangular in outline themselves, up to 15–20 cm long and nearly as wide at their base, with their basiscopic (downward-pointing) side more developed than the acroscopic. Upper pinnae become progressively simpler, narrower, and less dissected, transitioning from quadripinnate at the frond base to bipinnate near the apex. Ultimate segments are oblong, cuneate (wedge-shaped) at the base, 2–5 mm long and 1–2 mm wide, with a single vein that forks once. The tissue is thin-herbaceous, medium green, and translucent when held to light — a consequence of the lamina being only 3–5 cell layers thick in the ultimate segments. Compare this with Davallia canariensis, which is typically only bipinnate to tripinnate with broader, coarser segments 5–10 mm long, giving it a less refined appearance. At the opposite extreme, D. trichomanoides from Southeast Asia is even more finely divided than D. fejeensis, with filamentous ultimate segments under 1 mm wide, giving it an almost moss-like texture. D. solida from Polynesia produces the coarsest fronds in the genus: bipinnate, thick-textured, leathery, with segments 8–15 mm long. The texture differences among these species directly reflect their respective habitats: D. fejeensis occupies humid, sheltered positions in Fijian rainforest where thin, highly dissected laminae maximise light capture per unit of tissue investment without excessive transpirational cost; D. solida grows in exposed coastal and lowland sites where thicker tissue resists desiccation.

Native Range & Distribution Map

Distribution map showing the native range of Davallia fejeensis.

Biology & Frond Morphology

Frond and sorus anatomy diagram Cross-section illustration showing pinnae, sori, indusium, and sporangia anatomy of Davallia fejeensis. SORUS (detail) indusium + sporangia PINNA (underside) midrib + lateral veins Frond Anatomy & Sporangia

The vegetative body of Davallia fejeensis is organised around a long-creeping, sympodially branching rhizome that constitutes the most distinctive morphological feature of the species. The rhizome is 8–15 mm in diameter (occasionally to 20 mm in well-grown specimens), terete in cross-section, and densely covered with persistent peltate scales 3–6 mm long that are pale brown to silvery-tan at maturity, darker brown at the point of attachment, and have entire to slightly toothed margins. These scales are not mere surface ornaments: they serve a critical physiological role in reducing transpirational water loss from the rhizome cortex, and their pale colouration reflects solar radiation, reducing heat load on the rhizome when it grows in exposed positions. Internally, the rhizome contains a dictyostelic vascular cylinder (a network of interconnected meristeles) surrounded by a thick cortex of parenchyma cells that stores water and starch — the anatomical basis for the species’ drought tolerance. The rhizome elongates at rates of 5–15 cm per year under cultivation, branching dichotomously or laterally at irregular intervals, and produces fronds at nodes spaced 2–5 cm apart. Each frond emerges from a bud on the upper surface of the rhizome and consists of a wiry stipe 10–20 cm long (dark brown at the base, transitioning to green) and a lamina 20–45 cm long with a broadly triangular outline, widest at the base and tapering to an acute apex. The lamina is tripinnate to quadripinnate — divided three to four times — producing extremely fine, lacy segments that give the frond an airy, almost feathery appearance. The rachis and costae are green and glabrous (without scales or hairs). Ultimate segments (pinnules of the last order) are small, 2–5 mm long, oblong to cuneate, each containing a single forking vein. Fertile segments bear a single sorus at the tip, positioned at the margin of the lamina. The sorus is protected by a cup-shaped or pouch-shaped indusium — the diagnostic davallioid sorus type that defines the family Davalliaceae. This indusium is attached at its base and sides, opening outward toward the segment tip, forming a pocket that shelters the sporangia during development. Sporangia are leptosporangiate with an annulus of 12–14 thickened cells. Spores are monolete, reniform (kidney-shaped), 28–35 µm long, with a smooth to finely granulate perispore. The somatic chromosome count is 2n = 80, based on a base number of x = 40 for Davalliaceae. Roots emerge from the ventral surface of the rhizome, typically at or near frond-bearing nodes; they are wiry, dark brown, 0.5–1 mm in diameter, and function primarily for anchorage rather than nutrient absorption — in the wild, the rhizome surface and its associated scale-trapped humus provide much of the mineral nutrition.

Spore Dispersal

Reproduction in Davallia fejeensis follows the standard leptosporangiate fern life cycle, but the arrangement and morphology of the sori are diagnostic for the family Davalliaceae and warrant detailed description. Sori are marginal, positioned singly at the tips of fertile ultimate segments — each segment bears at most one sorus. The sorus is protected by a distinctive cup-shaped, pouch-shaped, or tubular indusium that is attached at its base and along both lateral margins, leaving only the distal (outer) edge free and opening toward the segment margin. This ‘davallioid’ indusium is the key morphological character that unites Davalliaceae and distinguishes it from the superficially similar Dennstaedtiaceae (which have marginal sori but with a different indusial structure) and from Polypodiaceae (which lack indusia entirely). The indusium is green when young, becoming tan-brown and papery at maturity, 1–1.5 mm long and roughly as wide, and persists on the frond long after spore release. Within each indusial cup, 8–20 stalked sporangia develop on a small receptacle. Each sporangium is a stalked capsule with a vertical annulus of 12–14 thickened cells that generates the hygroscopic catapult mechanism for spore ejection — as the sporangium wall dries, tension builds in the annulus until it snaps backward, flinging spores into the air column at velocities sufficient to clear the boundary layer around the frond. Each sporangium produces 64 spores (the standard leptosporangiate number from four meiotic divisions of 16 spore mother cells). Spores are monolete (with a single linear laesura), reniform to bean-shaped, 28–35 µm in length, with a smooth to finely granulate perispore. They are wind-dispersed and, given their small size, can travel considerable distances — potentially hundreds of kilometres on sustained trade winds across the Pacific, which partly explains the species’ natural distribution across widely separated Fijian and Pacific islands. Upon landing on a suitably moist surface, the spore germinates within 7–21 days at 22–28°C. The resulting gametophyte (prothallus) is a thin, heart-shaped structure 3–6 mm across, photosynthetic, anchored by rhizoids. Antheridia and archegonia develop on the prothallial underside; fertilisation requires a surface film of water for the multiflagellate sperm to swim from antheridium to archegonium. The zygote develops into a young sporophyte that emerges from the archegonial notch. However, under cultivation, spore propagation is rarely practiced because vegetative propagation by rhizome cuttings is dramatically faster and simpler — a 10 cm rhizome section can produce an independent plant in 3–4 weeks, whereas spore-to-sporophyte takes 6–12 months.

Comparison with Similar Species

D. fejeensis vs D. canariensis: D. fejeensis produces finer, more finely dissected fronds (tripinnate-quadripinnate vs bipinnate-tripinnate), is strictly tropical (minimum 10°C vs tolerating -5°C), has paler silvery-tan rhizome scales (vs orange-brown in canariensis), and is a smaller plant overall (fronds to 45 cm vs 60 cm). D. canariensis is the better choice for outdoor Mediterranean or mild temperate gardens; D. fejeensis is the better indoor hanging basket plant. D. fejeensis vs D. mariesii: D. mariesii is deciduous and cold-hardy to USDA zone 6 — it loses all fronds in autumn and the rhizome overwinters bare, resprouting in spring. D. fejeensis is evergreen (or semi-deciduous only under drought stress) and dies below 10°C. Mariesii has much smaller fronds (10–20 cm vs 25–45 cm) and slimmer rhizomes (5–8 mm vs 8–15 mm). Choose mariesii for outdoor temperate gardens; fejeensis for indoor tropical. D. fejeensis vs D. trichomanoides: Trichomanoides is the miniature of the genus — fronds 15–25 cm, quadripinnate with filamentous segments under 1 mm wide. It requires higher humidity than D. fejeensis and is less drought-tolerant. Better for terrariums and kusamono than hanging baskets. D. fejeensis vs Humata tyermannii (Bear’s Paw Fern): Humata has thicker, stiffer, dark brown to black rhizome scales that look distinctly different from D. fejeensis’s pale silvery-tan ones — hence ‘bear’s paw’ vs ‘rabbit’s foot.’ Humata fronds are coarser, only bipinnate-tripinnate, shorter (15–30 cm), and more leathery. Cultural requirements are similar. Humata is slower-growing and less widely available.

Reproduction & Propagation

Fern life cycle diagram Alternation of generations diagram showing sporophyte, sporangia, spores, prothallus, and young sporophyte of Davallia fejeensis. SPOROPHYTE (2n, diploid) SPORANGIUM releases spores (n) PROTHALLUS (n, gametophyte) YOUNG SPOROPHYTE (fiddlehead, 2n) ALTERNATION OF GENERATIONS

Rhizome cuttings are by far the easiest and most reliable propagation method for Davallia fejeensis, and should be the default approach for all but specialist breeders. Select a healthy, actively growing rhizome section at least 10–15 cm long with 2–3 attached fronds and visible root initials (small bumps or short wiry roots on the ventral surface). Cut cleanly with a sterile blade — the rhizome is tough and fibrous, so sharp bypass secateurs work better than scissors. Allow the cut end to air-dry for 2–4 hours to form a callus that resists rot entry. Prepare a shallow tray or pot with moist long-fibre sphagnum moss or a 1:1 mix of sphagnum and fine orchid bark. Lay the rhizome cutting horizontally on the surface — do not bury it. Pin it in contact with the substrate using bent wire staples (hairpin-shaped lengths of 1 mm galvanised wire) or small stones placed over the rhizome between the frond attachment points. Cover the tray with a clear plastic bag or humidity dome to maintain 70–80% humidity. Place in bright indirect light at 20–25°C. New roots will emerge from the ventral surface within 10–21 days. New frond buds will appear along the rhizome within 3–6 weeks. Once the cutting has produced 2–3 new fronds and a visible network of new roots (typically 4–8 weeks), remove the humidity cover and transition to normal care. Success rates exceed 90% with healthy rhizome material. Division of large plants is essentially the same process at larger scale: unpot the plant, identify natural branching points in the rhizome network, and cut the network into sections, each with at least 15–20 cm of rhizome and several fronds. Pot each division into fresh bark mix. Spore propagation is technically possible but impractical for home growers. Surface-sow spores on sterilised peat or agar under sterile conditions at 22–26°C with constant humidity. Gametophytes appear in 3–6 weeks; sporophytes in 3–6 months. The entire process from spore to a saleable plant takes 12–18 months, compared to 6–8 weeks by rhizome cutting. Commercial nurseries propagate by rhizome division and, increasingly, by tissue culture of rhizome meristems.

Cultivation & Substrate

Pot substrate and rhizome diagram Cross-section of a pot showing drainage layers, substrate, and rhizome placement for growing Davallia fejeensis. mulch (bark/humus) coir + peat + leafmould pumice/perlite drainage rhizome (horizontal) Substrate, Drainage & Rhizome Placement

Hanging baskets are the ideal container for Davallia fejeensis — the rhizomes naturally grow outward and downward over the basket rim, displaying their scaly ‘feet’ to full effect. Use a wire basket lined with sphagnum moss, or an open-weave basket that the rhizomes can grip. The substrate must be coarse, fast-draining, and airy: a mix of chunky orchid bark (8–15 mm grade), long-fibre sphagnum moss, and perlite in a ratio of approximately 2:1:1 works well. Never use standard potting soil, peat-heavy mixes, or any substrate that holds water for extended periods — the rhizomes will rot. The plant can also be mounted on cork bark slabs, treefern fibre panels, or driftwood, exactly as one would mount an epiphytic orchid: tie the rhizome to the mount with fishing line or soft wire, place a pad of sphagnum between rhizome and mount, and mist daily until the roots grip. Mounted specimens need more frequent watering than potted ones but display the creeping rhizome habit to its fullest. Watering rhythm is the key to success: drench the substrate thoroughly, then allow it to dry to near-dryness before watering again. In a hanging basket with a bark-based mix, this typically means watering every 4–7 days in summer and every 10–14 days in winter, depending on temperature and air movement. The rhizomes’ water-storage capacity provides a buffer that makes timing less critical than with moisture-loving ferns like Adiantum. Fertilise monthly from April through September with a balanced liquid fertiliser (e.g. 20-20-20) at half the recommended concentration — epiphytic ferns are adapted to low nutrient levels and will suffer root burn from full-strength feeds. In winter, stop fertilising entirely. Humidity above 40% is beneficial but not critical; D. fejeensis tolerates normal indoor humidity (30–50%) far better than most ferns. If frond tips brown in very dry winter air, mist the foliage every few days or place a pebble tray beneath the basket. Repotting is needed every 2–3 years when the rhizomes have completely overrun the basket. Remove the plant, trim dead roots and old rhizome sections, and replant in fresh substrate. The rhizomes are tough — handle them without concern, they are not fragile.

Cultivation Quick Reference:
Substrate: Coarse orchid bark + sphagnum moss + perlite (2:1:1); excellent drainage mandatory; no standard potting soil
Water: Allow substrate to dry slightly between waterings; tolerates brief drought; rhizomes store water reserves
Light: Bright indirect light; tolerates some morning sun; avoid deep shade and harsh midday direct sun
Humidity: 50-80%

Common Mistakes to Avoid

The single most common cause of death in cultivated Davallia fejeensis is planting it in standard potting soil. Regular peat-based or compost-based mixes retain moisture for far too long around the rhizome cortex, creating anaerobic conditions that favour bacterial and fungal rot. The rhizome turns soft, dark, and mushy from the underside inward, and by the time the grower notices frond yellowing, the damage is irreversible. The fix is simple: use only coarse, bark-based epiphytic mixes, and accept that the pot will look ‘underfilled’ by normal houseplant standards. The second most common mistake is burying the rhizomes. New owners see the creeping stems spilling over the pot rim and assume the plant needs repotting into a larger container with the rhizomes tucked back in. This is exactly wrong. The rhizomes must sit on the surface or drape freely — they are aerial organs that need air circulation around them. Burying them in substrate is the equivalent of submerging them in a swamp. Third: overwatering. Because D. fejeensis is a fern, many growers assume it needs constant moisture. It does not. The water-storing rhizome cortex is an adaptation to intermittent drought in its epiphytic habitat, and the plant actually performs better on a wet-dry cycle than on constant dampness. Water thoroughly, then wait until the substrate is nearly dry before watering again. Fourth: too little light. While D. fejeensis tolerates lower light than many houseplants, dark corners produce etiolated, sparse fronds with long internodes on the rhizome. Bright indirect light — the equivalent of a north- or east-facing window with no obstruction — produces the densest, most attractive growth. Fifth: cold exposure. Temperatures below 10°C cause frond dieback and can damage rhizome growing tips. In temperate climates, never leave a rabbit’s foot fern outdoors past mid-September, and keep it away from cold windowpanes in winter. Sixth, and perhaps most frustrating to experienced growers: cutting off the ‘furry feet.’ Some owners mistake the scaly rhizomes for dead roots or parasitic growths and trim them away, removing the plant’s primary ornamental feature and its water reserve in one misguided act. The furry parts are the living rhizome — the main body of the plant. Never cut them unless you are deliberately taking propagation cuttings.

Seasonal Considerations

Spring (March–May): New fronds emerge as day length increases and temperatures rise. Resume regular watering and begin monthly feeding with half-strength balanced liquid fertiliser (20-20-20 or similar). Inspect rhizomes for any sections that rotted during winter and prune away dead or soft material with clean scissors. This is the best time to repot if the rhizomes have completely overgrown the basket, and the best time to take rhizome cuttings for propagation. Summer (June–August): The most active growth period. Fronds reach full size and the rhizome extends rapidly. Water consistently, typically every 4–5 days in a bark mix, adjusting for temperature and air movement. Continue monthly feeding. If growing outdoors in a shaded position (USDA 10–12), ensure no direct midday sun reaches the fronds. Watch for spider mites if indoor air is dry from air conditioning — mist fronds or run a humidifier nearby. Autumn (September–November): Growth slows as light diminishes. Reduce watering frequency to every 7–10 days. Give the last fertiliser application in early October, then stop until spring. If the plant has been summering outdoors, bring it inside before night temperatures drop below 12°C. Some lower fronds may yellow and die naturally as the plant reallocates resources — remove spent fronds at the base. Winter (December–February): Minimal growth. Water sparingly, every 10–14 days, just enough to prevent complete substrate desiccation. The rhizomes’ water reserves carry the plant through this period. Maintain temperatures above 10°C; keep away from cold windowpanes, radiator drafts, and heating vents. No fertiliser. Some frond loss is normal, especially in heated rooms with humidity below 30%. If frond tips brown, mist the foliage weekly or place on a pebble tray. New growth will resume in spring.

Diseases & Pests

Fern pests and diseases diagram Magnified view of scale insects, rust spots, and leaf damage affecting Davallia fejeensis. SCALE + RUST Pests, Fungal Spots & Diagnostics

Rhizome rot is the primary disease threat to Davallia fejeensis and accounts for the vast majority of plant losses in cultivation. It is caused by a consortium of opportunistic fungi (Pythium, Phytophthora, Rhizoctonia) and bacteria (Erwinia, Pseudomonas) that attack waterlogged rhizome tissue. The initial symptom is a softening and darkening of the rhizome cortex on the underside where it contacts wet substrate. The rot progresses inward, turning the rhizome mushy, brown-black, and foul-smelling. Fronds attached to rotted sections yellow and collapse, but often not until the rot is well advanced — because the rhizome’s water reserves continue to supply the fronds for some time after the vascular tissue is compromised. Prevention is entirely cultural: use only fast-draining substrates, allow drying between waterings, and never bury the rhizome. If rot is caught early, cut away all affected tissue back to firm, white-green rhizome, dust the cut with powdered cinnamon or sulphur, allow to dry for 24 hours, and replant in fresh dry substrate. Do not water for 5–7 days after surgery. Scale insects (primarily brown soft scale, Coccus hesperidum) are the most common invertebrate pest. They appear as small (2–4 mm), flat, brown, oval bumps on the undersides of fronds along the costae and on the rhizome itself, where they are camouflaged among the pale brown scales and easily overlooked. Heavy infestations cause frond yellowing and stunting. Remove manually with a cotton swab dipped in isopropyl alcohol, or spray with horticultural oil (neem or mineral oil at 1–2% concentration). Mealybugs (Pseudococcus spp.) can colonise the crevices between rhizome scales, producing white cottony masses. Treat as for scale. Spider mites (Tetranychus urticae) appear in dry indoor conditions, producing fine webbing on frond undersides and a stippled, bleached appearance on upper surfaces. Increase humidity and apply miticide or insecticidal soap. Fungal leaf spots are rare in well-ventilated conditions but can occur in stagnant, humid environments: circular brown spots 2–5 mm in diameter on frond segments. Improve air circulation and remove affected fronds.

Indoor Growing & Terrariums

Indoor fern setup diagram Illustration of a window, hanging basket, and humidity waves showing ideal indoor conditions for Davallia fejeensis. 60-80% humidity 18-24 °C Indoor Environment & Humidity

Davallia fejeensis is one of the most reliable indoor ferns available, outperforming Adiantum (maidenhair), Pteris, and even Nephrolepis in typical household conditions. Its secret is the water-storing rhizome, which provides a physiological buffer against the two conditions that kill most indoor ferns: irregular watering and low humidity. Hang it in a wire or macramé basket near a bright east-facing or north-facing window — it needs good indirect light but no direct afternoon sun. A position 1–2 metres from an unobstructed south or west window also works if filtered by a sheer curtain. Avoid dark corners: the fern will survive but produce sparse, elongated fronds with wide rhizome internodes, losing its compact, bushy character. Normal room humidity (30–50%) is tolerated, though 50–60% produces better growth. In winter, when central heating drops humidity to 20–30%, the frond tips may brown. Mitigation options, in order of effectiveness: run a cool-mist humidifier in the room, place the basket above a pebble tray with water, mist the fronds 2–3 times per week, or group the plant with other humidity-loving plants to create a microclimate. The dangling furry rhizomes are the primary ornamental feature indoors — choose a hanging position at or above eye level where they can be appreciated. A bathroom with a window is close to ideal: the combination of bright indirect light, elevated humidity from showers, and warm temperatures replicates the fern’s natural conditions almost perfectly. Kitchen windows above sinks work similarly. For tabletop display, a shallow bowl or wide clay pot works, allowing the rhizomes to cascade over the rim. Pair with other epiphytes that share the same watering rhythm: Phalaenopsis orchids, Tillandsia, Hoya. All three tolerate the wet-dry cycle that D. fejeensis prefers. Avoid grouping with moisture-demanding plants (Calathea, Fittonia, Selaginella) that require constant dampness — the watering schedules are incompatible.

Terrarium Setup

Davallia fejeensis is well suited to open terrariums, paludariums, and vivariums where its creeping rhizomes can be displayed to dramatic effect on vertical or angled surfaces. Mount the rhizome on a piece of cork bark, a section of treefern trunk, or natural driftwood using stainless steel pins, fishing line, or a thin layer of aquarium-safe silicone. Place a pad of live sphagnum moss between the rhizome and the mount to provide initial moisture. Within 2–4 weeks the roots will grip the mount and the rhizome will begin creeping across the surface, branching and extending the scaly ‘feet’ in a way that looks natural and unforced. Air circulation is important: D. fejeensis does not thrive in sealed, high-humidity enclosures the way Hymenophyllum or Trichomanes filmy ferns do. In a fully sealed terrarium with humidity at 95–100%, the rhizome scales stay perpetually wet and become susceptible to bacterial soft rot. Use an open-top terrarium, a mesh-covered vivarium, or a terrarium with ventilation holes that keep humidity at 60–80% rather than saturation. For tropical vivariums housing dart frogs or geckos, D. fejeensis is an excellent background plant: the fronds provide cover, the rhizomes create climbing surfaces, and the plant tolerates the intermittent misting cycles typical of vivarium husbandry. Pair it with other epiphytes that share its drainage requirements: Tillandsia, miniature orchids (Stelis, Lepanthes, Bulbophyllum), Pyrrosia, small Microsorum, and tropical mosses (Vesicularia, Taxiphyllum). Avoid pairing with plants that demand constant saturation (Selaginella, Hymenophyllum) unless they are positioned in a wetter microzone away from the Davallia rhizomes. Under terrarium lighting (6500K LED, 10–14 hours/day), the fronds will grow compact and well-coloured.

Landscape & Garden Use

Woodland fern habitat illustration Woodland floor scene showing Davallia fejeensis among rocks, moss, and tree trunks. Woodland Habitat & Companion Planting

Davallia fejeensis can be used in the garden wherever its hardiness and habitat preferences are matched. Ferns are classic choices for shaded borders, woodland gardens, stumperies, rockeries, stream-side plantings, and ground-cover under trees.

Landscape Tips

  • Companions: Hostas, Astilbe, Heuchera, Tiarella, Epimedium, hellebores, snowdrops and other shade-tolerant perennials are classic partners.
  • Soil preparation: Incorporate leaf mould or composted bark to improve moisture retention and mimic a forest floor.
  • Mulching: A 3–5 cm mulch of chipped bark or leaf litter protects the rhizomes, conserves moisture, and slowly releases nutrients.
  • Watering: Establish new plantings with regular deep watering during the first growing season; most hardy ferns need only occasional supplemental irrigation once established.

Conservation & Collector Notes

Fern conservation status illustration Globe with fern silhouette and IUCN shield showing the native range and conservation status of Davallia fejeensis. NATIVE RANGE IUCN RED LIST LC NT VU EN CR EW EX Least Concern → Extinct Protected Status Conservation Status & Global Range

Davallia fejeensis has not been formally assessed by the IUCN Red List as a separate species entry. Within its native range in Fiji, the species is widespread and locally common in both lowland and montane forest, occurring across the larger islands of Viti Levu, Vanua Levu, and Taveuni as well as many smaller islands. It is not considered threatened at the species level. The primary conservation concern for Fijian ferns generally is habitat loss through logging, agricultural conversion (particularly for sugarcane and coconut plantations), and urbanisation, which has reduced lowland forest cover on the main islands to scattered fragments. However, D. fejeensis is ecologically adaptable — it colonises secondary forest, garden trees, and disturbed habitats readily, and its efficient wind-dispersed spores allow rapid recolonisation of suitable substrates. The species faces no significant collection pressure from the wild because it is propagated cheaply and at scale by commercial nurseries worldwide through rhizome division and tissue culture. Plants sold in European, North American, and Asian garden centres are nursery-produced, not wild-collected. No CITES listing applies to Davalliaceae. The broader Fijian fern flora (approximately 300 species) includes several narrow endemics that are of greater conservation concern than D. fejeensis, and conservation efforts in Fiji are appropriately focused on these rarer taxa and on the preservation of intact native forest habitat.

Collector Notes

Davallia is a genus of approximately 40 species distributed across the Old World tropics and subtropics, from the Atlantic islands (Canary Islands, Azores) through Africa, southern Asia, Malesia, and the Pacific. For collectors building a comprehensive Davallia collection, D. fejeensis serves as the entry point — cheap, widely available, and forgiving. From there, the genus offers substantial variety. D. canariensis (Canary Islands Hare’s Foot Fern) is the Mediterranean representative: larger and coarser than D. fejeensis, with bipinnate to tripinnate fronds to 60 cm, rhizomes to 2 cm diameter covered in orange-brown scales, and notable cold tolerance (surviving to -5°C in sheltered positions, hardy in USDA zone 9). It is the only Davallia commonly grown outdoors in temperate Europe. D. solida (Polynesian Davallia) is a robust tropical species from Polynesia, Melanesia, and Southeast Asia with thick, leathery, bipinnate fronds to 50 cm and stout rhizomes to 2.5 cm diameter — the least finely divided of the commonly cultivated species. D. trichomanoides (Squirrel’s Foot Fern, from Southeast Asia) is at the opposite extreme: a miniature species with fronds 15–25 cm long, quadripinnate, with filamentous ultimate segments barely 1 mm wide, creating a moss-like texture. The rhizomes are slender (4–8 mm) with dark brown scales. It is popular in Japan for kusamono and accent plantings. D. mariesii (Japanese Hare’s Foot Fern) is the hardiest species in the genus, deciduous in winter, surviving to USDA zone 6 (-23°C) when dormant. The rhizomes are slender, covered in light brown scales, and the fronds are small (10–20 cm), bipinnate-tripinnate. It is grown outdoors in temperate gardens and prized for bonsai accent plantings in Japan. D. denticulata from tropical Asia produces large fronds (to 80 cm), tripinnate, with characteristic toothed margins on the pinnules. The genus Humata, once separated from Davallia, has been merged into it by some recent treatments; Humata tyermannii (Bear’s Paw Fern) from China has thicker, darker rhizome scales and simpler frond dissection than D. fejeensis. Interspecific hybrids exist: D. × burkei (fejeensis × canariensis) is occasionally encountered in the trade.

Ethnobotany & Cultural Significance

Ethnobotany and cultural history illustration Open book with a pressed fern bookmark representing traditional knowledge of Davallia fejeensis. A Ethnobotany & Cultural Significance

In Fijian traditional medicine, the rhizomes of Davallia fejeensis have been used as a poultice for wounds and skin infections, the scaly covering providing both a physical barrier and, reportedly, mild antiseptic properties — though the latter has not been confirmed by modern pharmacological studies. The rhizomes were also chewed as a remedy for mouth sores in some island communities. Beyond Fiji, the broader genus Davallia has scattered ethnobotanical uses across its range: in southern China, D. mariesii rhizomes (known as gu sui bu in traditional Chinese medicine) have been used for centuries to treat bone fractures, kidney disorders, and tooth pain, and modern research has identified flavonoid compounds (naringin, others) with osteogenic activity that partially validates this traditional use. However, it is D. mariesii, not D. fejeensis, that is the medicinal species of commerce. The cultural impact of D. fejeensis in the West has been primarily ornamental and aesthetic. The furry rhizomes inspired a proliferation of common names in European languages: Rabbit’s Foot Fern and Hare’s Foot Fern (English), Hasenpfotenfarn (German), Fougère patte de lièvre (French), Eekhoornvaren or Hazenpootjesvaren (Dutch). In Victorian England, the dangling, fur-covered rhizomes made D. fejeensis a conversation piece in parlours and drawing rooms during the ‘pteridomania’ fern craze of 1850–1890. It was one of the plants that demonstrated to a non-gardening public that ferns could be decorative indoor plants, not merely weeds of damp ditches and forest floors. This shifted cultural perception contributed to the broader Victorian embrace of indoor gardening that eventually gave rise to the modern houseplant industry. The species continues to hold a unique niche in popular culture: the furry rhizomes are frequently shared on social media as ‘nature being weird’ content, introducing a new generation to the morphological diversity of ferns.

Frequently Asked Questions

What are the furry things growing out of my fern's pot?

Those are rhizomes — the main creeping stems of the plant. They are covered in silvery-tan peltate scales that give them a furry appearance, hence the common name Rabbit’s Foot Fern. The rhizomes are alive, healthy, and the most important part of the plant. They store water, produce new fronds, and are the primary ornamental feature. Do not cut them off.

Can I cut the rhizomes back if they get too long?

You can trim rhizomes for aesthetics or propagation, but never remove all of them. Each cut rhizome section 10–15 cm long with 2–3 fronds can be pinned onto moist sphagnum to grow a new plant. If you want to control size, trim the longest rhizomes back to the pot rim, cutting just above a node (a point where a frond emerges).

How do I repot without damaging the rhizomes?

Soak the root ball for 20–30 minutes to soften the old substrate. Gently tease apart the root mass, working from the bottom upward. The rhizomes are tough and flexible — they tolerate handling well. Place the plant in a slightly larger basket with fresh bark-sphagnum-perlite mix. Position the rhizomes on top of the substrate surface; do not bury them. They will re-anchor within 2–3 weeks.

Why are fronds turning yellow and falling off?

Three common causes: (1) Drought stress — if the substrate has been bone-dry for more than 2–3 weeks, the plant sacrifices older fronds to conserve water. Resume watering and new fronds will appear within weeks. (2) Cold exposure — temperatures below 10°C cause frond dieback. Move to a warmer location. (3) Overwatering / root rot — if the rhizome is soft and dark underneath, rot has set in. Cut away affected sections and repot in dry, fresh bark mix.

Can I mount this fern on a piece of wood like an orchid?

Yes — mounted culture is excellent for D. fejeensis and displays the creeping rhizome habit naturally. Use cork bark, treefern slab, or driftwood. Secure the rhizome with fishing line or staples over a pad of damp sphagnum. Mist the mount daily until roots grip (2–4 weeks). Mounted plants need more frequent watering than potted ones because the substrate volume is minimal.

How do I propagate from rhizome cuttings?

Cut a 10–15 cm rhizome section with 2–3 fronds attached. Let the cut end dry for 2–4 hours. Pin the cutting horizontally on moist sphagnum or bark mix — do not bury it. Cover with a plastic bag or humidity dome at 20–25°C in bright indirect light. Roots appear in 10–21 days, new fronds in 3–6 weeks. Success rate exceeds 90%.

Is Rabbit's Foot Fern toxic to cats and dogs?

No. Davallia fejeensis is non-toxic to cats, dogs, and humans according to the ASPCA. It is one of the safest ferns for households with pets. The rhizome scales are not palatable and are unlikely to be ingested in quantity, but even if chewed, they pose no toxicity risk.

How long do the rhizomes eventually get?

Individual rhizome branches can grow 5–15 cm per year. In a hanging basket left undisturbed for several years, rhizomes can trail 30–60 cm below the basket rim, with the branching network spreading to cover the entire basket surface. Exceptionally old specimens in greenhouses have produced rhizome networks exceeding 1 metre in length on individual branches. The growth is indeterminate — the rhizome keeps extending as long as the plant is healthy.

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Quick Reference Summary: Davallia fejeensis

Frond Type: Tripinnate to quadripinnate, finely dissected, triangular outline; semi-deciduous under drought stress
Substrate: Coarse orchid bark + sphagnum moss + perlite (2:1:1); excellent drainage mandatory; no standard potting soil
Water: Allow substrate to dry slightly between waterings; tolerates brief drought; rhizomes store water reserves
Light: Bright indirect light; tolerates some morning sun; avoid deep shade and harsh midday direct sun
Temperature: 15–28°C optimal; minimum 10°C; no frost tolerance; protect below 12°C
Dormancy: Semi-deciduous under drought stress — rhizomes survive and resprout; evergreen with consistent moisture
USDA Zones: 10-12
Difficulty:
BeginnerIntermediateExpertBeginner

Golden Rule: Match moisture, light and humidity to each fern’s natural habitat — woodland ferns need shade and humus, rock ferns need drainage, filmy ferns need constant humidity.

Davallia fejeensis is an epiphytic fern from Fiji with creeping rhizomes covered in silvery-tan scales that resemble furry animal feet, giving it the common name Rabbit’s Foot Fern. Hardy in USDA zones 10–12 and widely grown as an indoor hanging basket plant, it is one of the most drought-tolerant and forgiving ferns in cultivation, requiring only coarse bark-based substrate, bright indirect light, and a wet-dry watering cycle.

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