Plant care
Fittonia (nerve plant) care
Fittonia albivenis
Also called nerve plant, mosaic plant.
Light
Fittonia prefers the middle of the household lighting range — bright enough to read by all day, but never in the direct path of midday sun. Bright indirect light; tolerates lower light. Direct sun scorches the leaves. A useful test: hold your hand a few centimetres above the leaves at noon. A faint hand shadow means good light; a sharp dark shadow means direct sun and likely too much for this species.
Watering
Water fittonia when the top 1 cm of soil is dry, every 3-5 days. The actual day count varies with pot size, light level, and the season — the finger test (or, better, lifting the pot to feel its weight) is more reliable than a calendar. Empty any drainage saucer after watering so the pot is never sitting in water. Keep evenly moist. Wilting is a clear signal — a thorough watering revives it within an hour.
Soil and pot
Fittonia grows best in moisture-retentive houseplant mix. Standard potting compost; no special amendments needed. 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
Fittonia sits happiest at around 60-80% humidity and 18-26°C (65-80°F). Loves high humidity. A terrarium is its ideal environment. If you keep the room above 18 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 fittonia sparingly. Quarter-strength balanced feed every 4-6 weeks during the growing season. 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 fittonia in the Growli community. Each is annotated with the most common cause so you know where to start.
- Dramatic wilting — Soil dried out completely; soak and the plant should recover within an hour.
- Crispy leaf edges — Low humidity.
- Faded vein colour — Too much direct sun.
- Leggy stems — Pinch tips to keep the plant bushy.
Propagation
Stem cuttings root within 2-3 weeks in water or moist mix. 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
Fittonia is pet-safe. Fittonia albivenis is listed by the ASPCA as 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.
Fittonia care — frequently asked questions
What is the common name for Fittonia albivenis?
Fittonia albivenis is most commonly called Fittonia, but it is also known as nerve plant, mosaic plant. The names refer to the same species, so care instructions for Fittonia apply identically to anything sold as nerve plant.
How much light does fittonia need?
Fittonia grows best in medium indirect light (a couple of metres from a window). Bright indirect light; tolerates lower light. Direct sun scorches the leaves.
How often should I water fittonia?
Water fittonia when the top 1 cm of soil is dry, every 3-5 days. Keep evenly moist. Wilting is a clear signal — a thorough watering revives it within an hour. 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 fittonia toxic to cats and dogs?
Fittonia is pet-safe. Fittonia albivenis is listed by the ASPCA as non-toxic to cats and dogs.
What USDA hardiness zone does fittonia grow in?
Fittonia is rated for USDA zone 10-11 (indoor-only) and RHS hardiness H1b. Outside that range, grow it as a container plant that overwinters indoors before the first hard frost.
Fittonia deep-dive guides
Every aspect of fittonia care, each with its own calibrated guide:
- Fittonia watering schedule
- Fittonia light requirements
- Best soil mix for fittonia
- Fittonia fertilizing guide
- When to repot fittonia
- How to propagate fittonia
- Fittonia growth rate & size
- Fittonia cold hardiness
- Fittonia temperature & humidity
- Is fittonia toxic to cats & dogs?
Related guides
Fittonia is also commonly called nerve plant or mosaic plant.