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Plant care

Fortune's Holly Fern (Fortune's Hollyfern) care

Cyrtomium fortunei

Also called Fortune's Hollyfern, Asian Holly Fern.

RHS H5USDA 6-9Pet-safeIndoor 40-60 cm tall and wide

Watering rhythm

7-10days

When the top 2-3 cm of soil feels dry, roughly every 7-10 days in summer and every 10-14 days in winter

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Light

Low light (north window or shaded room)

Soil

Humus-rich, free-draining potting mix

Humidity

40-60%

Temp

5-22°C

Pet safety

Pet-safe

Mature size

40-60 cm tall and wide

Care at a glance

Light

If you have a corner where every other plant turned leggy and died, try fortune's holly fern. Grows well in low to medium indirect light. Tolerates shade better than most ferns. Avoid prolonged direct sun, which fades fronds and causes scorching, especially in summer. The catch: when a low-light plant does fail, it's almost always because someone watered it on the same schedule as their brighter plants. Less light = less water, every time.

Watering

Watering fortune's holly fern: when the top 2-3 cm of soil feels dry, roughly every 7-10 days in summer and every 10-14 days in winter. 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. Water thoroughly then allow the top layer to dry slightly before re-watering. More drought-tolerant than most ferns, but prolonged dry periods cause frond tips to brown. Reduce watering significantly in winter.

Soil and pot

Fortune's Holly Fern grows best in humus-rich, free-draining potting mix. Use a peat-free multipurpose compost blended with perlite or grit (roughly 3:1) to ensure drainage while retaining some moisture. A slightly acidic to neutral pH of 5.5–7.0 is ideal. 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

Fortune's Holly Fern sits happiest at around 40-60% humidity and 5-22°C (41-72°F). More tolerant of dry air than most ferns and will cope with average household humidity (40–50%). Misting or a pebble tray with water can help in heated winter rooms, but is not strictly necessary. If you keep the room above 5 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 fortune's holly fern sparingly. Apply a half-strength balanced liquid fertiliser (e.g. 10-10-10) once a month from spring through early autumn. Do not feed in winter when growth slows. Avoid overfeeding, which can cause lush but weak growth susceptible to pests. 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 fortune's holly fern in the Growli community. Each is annotated with the most common cause so you know where to start.

  • Scale insects — Hard brown scales on frond undersides or stems. Remove manually with a damp cloth and treat with neem oil or insecticidal soap.
  • Brown frond tips — Typically caused by dry air or fluoride in tap water. Improve humidity or switch to filtered water.
  • Root rot — Caused by sitting in waterlogged compost. Ensure the pot has drainage holes and allow partial drying between waterings.
  • Pale or bleached fronds — Indicates too much direct light. Move to a shadier position.

Companion plants

Fortune's Holly Fern pairs well with Aspidistra elatior, Helleborus, Hosta, and Polystichum setiferum. 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 established clumps in spring — separate rooted sections and pot individually into fresh compost. Alternatively, spores can be collected from mature frond undersides and sown on damp compost, though germination is slow and variable. 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

Fortune's Holly Fern is pet-safe. Cyrtomium fortunei is not listed as toxic by the ASPCA. True ferns in the Dryopteridaceae family are generally considered non-toxic to cats and dogs. 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.

Fortune's Holly Fern care — frequently asked questions

What is the common name for Cyrtomium fortunei?

Cyrtomium fortunei is most commonly called Fortune's Holly Fern, but it is also known as Fortune's Hollyfern, Asian Holly Fern. The names refer to the same species, so care instructions for Fortune's Holly Fern apply identically to anything sold as Fortune's Hollyfern.

How much light does fortune's holly fern need?

Fortune's Holly Fern grows best in low light (north window or shaded room). Grows well in low to medium indirect light. Tolerates shade better than most ferns. Avoid prolonged direct sun, which fades fronds and causes scorching, especially in summer.

How often should I water fortune's holly fern?

Water fortune's holly fern when the top 2-3 cm of soil feels dry, roughly every 7-10 days in summer and every 10-14 days in winter. Water thoroughly then allow the top layer to dry slightly before re-watering. More drought-tolerant than most ferns, but prolonged dry periods cause frond tips to brown. Reduce watering significantly in winter. 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 fortune's holly fern toxic to cats and dogs?

Fortune's Holly Fern is pet-safe. Cyrtomium fortunei is not listed as toxic by the ASPCA. True ferns in the Dryopteridaceae family are generally considered non-toxic to cats and dogs.

What USDA hardiness zone does fortune's holly fern grow in?

Fortune's Holly Fern is rated for USDA zone 6-9 and RHS hardiness H5. Outside that range, grow it as a container plant that overwinters indoors before the first hard frost.

Fortune's Holly Fern deep-dive guides

Every aspect of fortune's holly fern care, each with its own calibrated guide:

Featured in these plant shortlists

Fortune's Holly Fern qualifies for 11 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:

  • Best pet-safe houseplants — Houseplants 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 houseplants — Houseplants that need no direct sun and cope with a north-facing room or a spot well back from a window.
  • Best pet-safe low-light plants — Non-toxic to cats and dogs AND happy with no direct sun — the two hardest constraints to satisfy at once.
  • Best plants for cold, dark rooms — Houseplants 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 drought-tolerant houseplants — Houseplants that prefer to dry out — forgiving of forgotten watering and ideal for travel or busy weeks.
  • Best houseplants for beginners — Forgiving of irregular light and watering — the houseplants least likely to die in a new plant parent’s first season.
  • Best pet-safe low-maintenance plants — Non-toxic to cats and dogs and forgiving of forgotten watering — the easiest safe choices for a busy pet household.
  • Best houseplants for a cool room — Houseplants 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 plants — Non-toxic to cats and dogs and happy in lower light — calming greenery for a bedroom where a pet often sleeps too.
  • Best cat-safe plants — Houseplants the ASPCA lists as non-toxic to cats (and dogs) — safe greenery for a home with a curious cat.
  • Best dog-safe plants — Houseplants the ASPCA lists as non-toxic to dogs (and cats) — safe greenery for a home with a curious dog.
  • Browse all 30 plant shortlists — pet-safe, low-light, drought-tolerant and more

Related guides

Fortune's Holly Fern is also commonly called Fortune's Hollyfern or Asian Holly Fern.