Growli

Plant care

Resurrection Fern (Little Grey Polypody) care

Polypodium polypodioides

Also called Little Grey Polypody, Miracle Fern, Gray Polypody.

RHS H4USDA 5-10Pet-safeIndoor 5-15 cm tall

Watering rhythm

7-10days

Allow to dry slightly between waterings; roughly every 7-10 days, or mist daily when mounted

Light

Medium indirect light (a couple of metres from a window)

Soil

Free-draining, chunky epiphytic mix or bare bark mount

Humidity

50-75%

Temp

10-27°C

Pet safety

Pet-safe

Mature size

5-15 cm tall

Care at a glance

Light

The Goldilocks zone. Not the south-facing windowsill (too hot, too direct), not the back of the room (too dim, growth stalls). Thrives in medium to bright indirect light, ideally mimicking the dappled conditions of its natural tree-bark habitat. Tolerates lower light but frond size and growth rate decrease. Avoid prolonged direct sun. If you can't decide, a free phone lux-meter app aimed at the leaf at noon should read between 800 and 1,500 lux.

Watering

Watering resurrection fern: allow to dry slightly between waterings; roughly every 7-10 days, or mist daily when mounted. The number that matters isn't the day of the week — it's how dry the top 2-3 cm of the pot feels. A finger in the soil tells you more than a watering app. After every watering, tip the saucer. This epiphytic fern is adapted to boom-and-bust moisture cycles. When planted in a substrate, keep lightly moist; when mounted on bark or driftwood, mist daily and soak the mount weekly. It will curl and go dormant-looking when dry but revives with water.

Soil and pot

Resurrection Fern grows best in free-draining, chunky epiphytic mix or bare bark mount. Works best mounted on cork bark, driftwood, or tree fern fibre wrapped in sphagnum moss. If potted, use an orchid-style mix of bark, perlite, and sphagnum. Excellent aeration is essential. A pot with a working drainage hole is non-negotiable for this species — even free-draining mix will turn soggy in a closed planter. If you love the look of a decorative pot without a hole, use it as a cachepot around an inner nursery pot you can lift out to water.

Humidity and temperature

Resurrection Fern sits happiest at around 50-75% humidity and 10-27°C (50-80°F). More humidity-tolerant than many ferns and adapts to moderate household humidity. Higher humidity promotes consistently hydrated, full fronds. Mist mounted plants daily. If you keep the room above 10 year-round and avoid placing the plant near a cold draught, a hot radiator, or an air-conditioning vent, you have already handled the two biggest indoor stressors.

Fertilising

Feed resurrection fern sparingly. Feed monthly during spring and summer with a very dilute balanced liquid fertiliser (quarter strength). For mounted plants, use a foliar spray fertiliser. This species has minimal nutritional needs. Skip fertiliser entirely on a stressed, recently-repotted, or actively wilting plant — fertiliser salts make damage worse, not better. Wait for a round of healthy new growth before resuming a feeding rhythm.

Common problems

Below are the issues we see most often on resurrection fern in the Growli community. Each is annotated with the most common cause so you know where to start.

  • Frond curling and browningNormal desiccation response — the plant is not dead. Simply water or mist thoroughly and fronds will unfurl within hours.
  • Root rot when overwatered in substrateAvoid waterlogged conditions. The rhizomes rot if kept continuously wet. Allow slight drying between waterings.
  • Scale insectsCan colonise the creeping rhizomes. Remove manually with a cotton swab dipped in rubbing alcohol or treat with neem oil.
  • Failure to attach to mountTie the rhizomes to the mount with soft twine or string initially; once roots grip the surface the ties can be removed.

Companion plants

Resurrection Fern pairs well with Tillandsia, Miniature bromeliads, Lepanthes orchids, and Moss. These are species with similar light and water needs, so you can group them in the same room or on the same shelf and water as a batch.

Propagation

Divide the rhizome into sections each carrying at least one growing tip and mount or pot individually. Spore propagation is possible on moist sterile ericaceous mix at 18–22°C. Propagation is the cheapest, most satisfying way to expand a collection — and it doubles as insurance against losing a mature plant to an accident. Take a backup cutting once the parent is established and healthy.

Toxicity to pets

Resurrection Fern is pet-safe. Polypodium polypodioides is not listed by the ASPCA as toxic to cats or dogs. The genus Polypodium and true ferns broadly are considered non-toxic; no harmful compounds have been identified in this species. If you keep cats, dogs, or curious children in the house, weigh placement carefully — a high shelf or a hanging planter is enough for casual safety. For severe ingestion incidents, call your local vet and the ASPCA Animal Poison Control Center (in the US, 888-426-4435).

Pet-safety status is sourced from the ASPCA Toxic and Non-Toxic Plant List, which catalogues the most-asked-about plants for cats, dogs, and horses.

Resurrection Fern care — frequently asked questions

What is the common name for Polypodium polypodioides?

Polypodium polypodioides is most commonly called Resurrection Fern, but it is also known as Little Grey Polypody, Miracle Fern, Gray Polypody. The names refer to the same species, so care instructions for Resurrection Fern apply identically to anything sold as Little Grey Polypody.

How much light does resurrection fern need?

Resurrection Fern grows best in medium indirect light (a couple of metres from a window). Thrives in medium to bright indirect light, ideally mimicking the dappled conditions of its natural tree-bark habitat. Tolerates lower light but frond size and growth rate decrease. Avoid prolonged direct sun.

How often should I water resurrection fern?

Water resurrection fern allow to dry slightly between waterings; roughly every 7-10 days, or mist daily when mounted. This epiphytic fern is adapted to boom-and-bust moisture cycles. When planted in a substrate, keep lightly moist; when mounted on bark or driftwood, mist daily and soak the mount weekly. It will curl and go dormant-looking when dry but revives with water. The finger-test (or lifting the pot to feel its weight) beats a fixed weekly calendar because pot size, light, and season all change how fast the soil dries.

Is resurrection fern toxic to cats and dogs?

Resurrection Fern is pet-safe. Polypodium polypodioides is not listed by the ASPCA as toxic to cats or dogs. The genus Polypodium and true ferns broadly are considered non-toxic; no harmful compounds have been identified in this species.

What USDA hardiness zone does resurrection fern grow in?

Resurrection Fern is rated for USDA zone 5-10 and RHS hardiness H4. Outside that range, grow it as a container plant that overwinters indoors before the first hard frost.

Resurrection Fern deep-dive guides

Every aspect of resurrection fern care, each with its own calibrated guide:

Featured in these plant shortlists

Resurrection Fern qualifies for 14 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:

  • Best pet-safe houseplantsHouseplants the ASPCA lists as non-toxic to cats and dogs — every one verified against the ASPCA toxic and non-toxic plant list.
  • Best low-light houseplantsHouseplants that need no direct sun and cope with a north-facing room or a spot well back from a window.
  • Best plants for a north-facing windowHouseplants for a north-facing window: bright, even, indirect light and no scorching direct sun. Each pick verified against its documented light needs.
  • Best pet-safe low-light plantsNon-toxic to cats and dogs AND happy with no direct sun — the two hardest constraints to satisfy at once.
  • Best plants for cold, dark roomsHouseplants that cope with BOTH low light and a cool, unheated room — the hardest indoor spot to fill. Every pick tolerates a low of about 10°C and shade.
  • Best humidity-loving houseplantsHouseplants that thrive in a bathroom, kitchen, or by a humidifier — selected by documented humidity preference.
  • Best bathroom plantsHumidity-loving houseplants that also cope with lower light — suited to the steamy, often-dim conditions of a typical bathroom.
  • Best pet-safe bathroom plantsNon-toxic to cats and dogs and happy in the humid, lower-light conditions of a bathroom — safe greenery for the smallest room.
  • Best small & tabletop houseplantsCompact houseplants that stay under about 40 cm — desk, shelf and windowsill plants that never outgrow a small space.
  • Best houseplants for a cool roomHouseplants that tolerate cool conditions down to about 10°C — for an unheated spare room, hallway, porch or a home kept cool.
  • Best pet-safe bedroom plantsNon-toxic to cats and dogs and happy in lower light — calming greenery for a bedroom where a pet often sleeps too.
  • Best cat-safe plantsHouseplants the ASPCA lists as non-toxic to cats (and dogs) — safe greenery for a home with a curious cat.
  • Best dog-safe plantsHouseplants the ASPCA lists as non-toxic to dogs (and cats) — safe greenery for a home with a curious dog.
  • Best small pet-safe plantsCompact, tabletop houseplants that are also ASPCA non-toxic to cats and dogs — safe greenery for a desk or shelf.
  • Browse all 30 plant shortlists — pet-safe, low-light, drought-tolerant and more

Related guides

Resurrection Fern is also known as Little Grey Polypody, Miracle Fern, and Gray Polypody.