Growli

Plant care

Wimsett Brake Fern (Wimsett Cretan Brake) care

Pteris cretica 'Wimsettii'

Also called Wimsett Cretan Brake, Wimsett Ribbon Fern.

RHS H2USDA 9-11Pet-safeIndoor 25-40 cm tall indoors

Watering rhythm

7-10days

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

Light

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

Soil

Well-draining, humus-rich houseplant compost with perlite

Humidity

45-65%

Temp

13-24°C

Pet safety

Pet-safe

Mature size

25-40 cm tall indoors

Care at a glance

Light

Wimsett Brake Fern wants the spot a few feet back from a sunny window — bright enough to read a paperback at noon, but the sun never falls directly on the leaves. Performs well in medium to bright indirect light. Tolerates lower light levels better than many ferns, making it suitable for north-facing rooms. Avoid direct sunlight which causes bleaching and frond scorch. A faint hand shadow at midday is the right amount; a sharp dark shadow means it's getting direct sun and probably too much.

Watering

Water wimsett brake fern when the top 2 cm of soil feels dry, roughly every 7-10 days in summer. The actual day count varies with pot size, light, and season — the finger test (or lifting the pot to feel its weight) is more reliable than a fixed calendar. Empty any drainage saucer afterwards so the pot isn't sitting in water. Keep soil evenly moist during the growing season. This cultivar is slightly more drought-tolerant than most ferns but still dislikes extended dry periods. Reduce watering in winter while avoiding complete desiccation.

Soil and pot

Wimsett Brake Fern grows best in well-draining, humus-rich houseplant compost with perlite. A mix of peat-free houseplant compost and 20-25% perlite provides good moisture retention without waterlogging. Slightly acidic to neutral pH is ideal. Repot in spring when root-bound. 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

Wimsett Brake Fern sits happiest at around 45-65% humidity and 13-24°C (55-75°F). Moderate humidity is appreciated but this cultivar is somewhat tolerant of drier indoor air compared to many ferns. Occasional misting or a pebble tray prevents excessive tip browning. If you keep the room above 13 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 wimsett brake fern sparingly. Apply a half-strength balanced liquid fertiliser monthly from spring to early autumn. Avoid overfeeding as it can reduce the intricate crested tip formation that makes this cultivar distinctive. 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 wimsett brake fern in the Growli community. Each is annotated with the most common cause so you know where to start.

  • Brown frond tipsMost commonly caused by low humidity or under-watering. Raise humidity and maintain consistent soil moisture.
  • Pale frondsInsufficient light intensity. Move closer to a window with bright indirect light.
  • Fungus gnatsAllow the top centimetre of soil to dry slightly between waterings. Use yellow sticky traps to monitor adult populations.
  • MealybugsInspect the frond bases and crested tips; treat with isopropyl alcohol on a cotton swab.
  • Loss of crested tipsOccasionally occurs on new growth under stress. Ensure consistent watering, good humidity, and adequate light.

Companion plants

Wimsett Brake Fern pairs well with Asplenium scolopendrium, Calathea ornata, and Peperomia obtusifolia. 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

Division at repotting time in spring is the easiest method. Spore propagation is possible but the crested form may not come true from spores; division ensures the cultivar characteristics are preserved. 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

Wimsett Brake Fern is pet-safe. Pteris cretica and its cultivars are true ferns (Pteridaceae), generally non-toxic to cats and dogs according to ASPCA guidelines. No harmful substances specific to this cultivar have been identified. 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.

Wimsett Brake Fern care — frequently asked questions

What is the common name for Pteris cretica 'Wimsettii'?

Pteris cretica 'Wimsettii' is most commonly called Wimsett Brake Fern, but it is also known as Wimsett Cretan Brake, Wimsett Ribbon Fern. The names refer to the same species, so care instructions for Wimsett Brake Fern apply identically to anything sold as Wimsett Cretan Brake.

How much light does wimsett brake fern need?

Wimsett Brake Fern grows best in medium indirect light (a couple of metres from a window). Performs well in medium to bright indirect light. Tolerates lower light levels better than many ferns, making it suitable for north-facing rooms. Avoid direct sunlight which causes bleaching and frond scorch.

How often should I water wimsett brake fern?

Water wimsett brake fern when the top 2 cm of soil feels dry, roughly every 7-10 days in summer. Keep soil evenly moist during the growing season. This cultivar is slightly more drought-tolerant than most ferns but still dislikes extended dry periods. Reduce watering in winter while avoiding complete desiccation. 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 wimsett brake fern toxic to cats and dogs?

Wimsett Brake Fern is pet-safe. Pteris cretica and its cultivars are true ferns (Pteridaceae), generally non-toxic to cats and dogs according to ASPCA guidelines. No harmful substances specific to this cultivar have been identified.

What USDA hardiness zone does wimsett brake fern grow in?

Wimsett Brake Fern is rated for USDA zone 9-11 and RHS hardiness H2. Outside that range, grow it as a container plant that overwinters indoors before the first hard frost.

Wimsett Brake Fern deep-dive guides

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

Featured in these plant shortlists

Wimsett Brake Fern qualifies for 12 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 drought-tolerant houseplantsHouseplants that prefer to dry out — forgiving of forgotten watering and ideal for travel or busy weeks.
  • Best houseplants for beginnersForgiving of irregular light and watering — the houseplants least likely to die in a new plant parent’s first season.
  • Best pet-safe low-maintenance plantsNon-toxic to cats and dogs and forgiving of forgotten watering — the easiest safe choices for a busy pet household.
  • Best small & tabletop houseplantsCompact houseplants that stay under about 40 cm — desk, shelf and windowsill plants that never outgrow a small space.
  • 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

Wimsett Brake Fern is also commonly called Wimsett Cretan Brake or Wimsett Ribbon Fern.