Davallia tyermanii

Davallia tyermanii

Davallia tyermanii, White Rabbit’s Foot Fern, is a rhizomatous fern grown for finely divided green fronds and soft, pale, furry rhizomes that creep across the pot surface and trail over the rim. The visible rhizomes are living stems and should sit on the surface where they can breathe and continue extending.

The spelling Davallia tyermannii remains common in horticulture, but Davallia tyermanii is the accepted botanical spelling. Its native range extends from southern China to northern Myanmar and Taiwan, where it grows as an epiphyte or lithophyte in subtropical conditions. Indoors, that background translates into bright filtered light, airy substrate and careful moisture around the root zone.

Davallia tyermanii visible rhizome features

• Fine, lacy fern fronds above pale, furry creeping rhizomes
• Epiphytic or lithophytic habit with surface-running stems
• Well suited to shallow pots, hanging baskets or mounted displays
• Rhizomes should remain visible and unburied
• Prefers bright indirect light, airflow and moderate, even moisture

Davallia tyermanii epiphytic growth and range

Davallia tyermanii grows from creeping rhizomes that anchor the plant, produce roots and send up finely cut fronds along their length. Their white to silvery hairs protect the surface tissue and create the characteristic rabbit-foot look.

As an epiphytic or lithophytic fern, it naturally grows with air around its rhizomes on bark, rock or loose organic material. A shallow, open setup supports this surface growth and allows the rhizomes to travel visibly over the pot rim.

Davallia tyermanii fern care

• Light: Set the fern in bright indirect light. Move the fern toward a brighter window if growth becomes weak, while protecting the fronds from hot direct sun.
• Watering: Keep the root zone lightly and evenly moist. Let the upper substrate begin to dry before watering again, while keeping the rhizomes from sitting wet.
• Substrate: Provide an airy fern mix with fine bark, coco chips, leaf mould or peat-free organic matter, plus perlite or pumice for mineral drainage.
• Rhizome placement: Keep furry rhizomes on the surface. Burying them can lead to decay and weak frond production.
• Pot choice: Shallow pots and hanging baskets suit the creeping habit. Mounted culture is possible in warm, humid rooms.
• Humidity: Clean fronds develop more reliably with moderately humid air. Use grouping, a humidifier or a warm display case if room air is very dry.
• Temperature: Maintain around 18–25 °C for steady growth. Protect from cold draughts and chilly, wet substrate.
• Feeding: Use weak fertiliser in spring and summer. Fern roots are sensitive to strong salts.
• Repotting: Repot only when the pot is crowded or the substrate breaks down. Handle rhizomes gently and keep them exposed after repotting.
• Pruning: Remove old fronds at their base. Leave healthy rhizomes intact, even when they extend beyond the pot.
• Propagation: Divide rhizome sections in active growth, making sure each piece has roots or growing points.
• Substrate style: Airy organic-mineral fern mixes suit the exposed rhizomes. Position surface stems above the substrate with clear airflow around them.

Davallia tyermanii frond and rhizome checks

• Dry, crispy fronds: Check watering rhythm, humidity and exposure to hot air. It may need brighter filtered light with steadier moisture.
• Black or soft rhizomes: Often caused by buried rhizomes or wet, compact substrate. Lift healthy sections back onto the surface and improve airflow.
• Pale weak fronds: Low light can reduce frond strength. Shift it toward a brighter window with filtered exposure.
• Brown frond tips: Dry air, salt build-up or irregular watering can mark the fine leaf edges. Flush the substrate gently and reduce fertiliser strength.
• Scale or mealybugs: Inspect the furry rhizomes and frond bases. Pests can hide in the hairs and along the pot rim.

Davallia tyermanii becomes more characterful with age as the rhizomes spread over the container. A shallow pot or basket that shows the surface growth gives the rhizomes space to travel visibly while keeping the fern stable.

Davallia tyermanii placement safety

Davallia tyermanii is generally regarded as a pet-safe fern, though heavy chewing can still upset pets or damage the plant. The rhizomes are delicate living stems, so keep them unburied and handle them gently.

Davallia tyermanii accepted name and rhizome habit

Davallia tyermanii is the accepted botanical spelling, while Davallia tyermannii is still frequent in horticultural use. Davallia honours Edmond Davall, an eighteenth-century Swiss botanist. Tyermanii is a commemorative epithet.

Let Davallia tyermanii spread across a hanging basket, shallow pot or mount, with visible creeping rhizomes and finely divided green fronds.