Nerve Plant Care (Fittonia albivenis): Watering, Humidity, Light and Propagation

The nerve plant (Fittonia albivenis) is a low, creeping houseplant with deep green leaves covered in a fine net of white, pink or red veins. It fits on a windowsill, in a tiny pot or in a glass terrarium. It is famous for fainting: when it dries out it collapses completely, then stands back up after a drink.

How to identify a nerve plant

Fittonia forms a low mat of creeping stems that root as they spread. NC State Extension gives a height of up to about 8 inches and a spread of about 18 inches; the RHS describes the pink-veined form as a mat up to 6 inches tall. The leaves are opposite and oval, about 2–4 inches long according to NC State Extension. Stems are green, maroon or green marked with maroon, and hairy.

The species name albivenis means “with white veins.” The genus honors the sisters Elizabeth and Sarah Mary Fitton, who published a book on botany in 1817. Fittonia belongs to the acanthus family (Acanthaceae).

You will still see the older names Fittonia verschaffeltii and Fittonia argyroneura on plant tags. Kew’s World Checklist of Vascular Plants treats both as synonyms of Fittonia albivenis and gives its native range as tropical South America: Bolivia, northern Brazil, Colombia, Ecuador, Peru and Venezuela.

The flowers are small, white and tubular, barely peeking out between overlapping bracts on a short spike. NC State Extension notes that indoor plants typically do not flower, and the blooms are not showy anyway.

Light

Give a nerve plant bright light without direct sun. The RHS recommends a spot near a north- or east-facing window. NC State Extension says it thrives in bright to medium light and does well under fluorescent lights, which makes it a good desk plant. Direct sun scorches the leaves.

Avoid south-facing windowsills and spots next to radiators, where the soil dries out fast and the plant wilts. The RHS notes that yellowing leaves usually mean the plant needs more light. For more on reading your windows, see the houseplant light guide.

Watering

Keep the soil consistently moist. The RHS advises watering frequently and keeping the compost barely moist in winter. NC State Extension suggests watering about twice a week. Treat that as a starting point and check the soil with your finger before you water, because the right interval depends on your pot, room and season.

When a fittonia dries out, the leaves and stems flop over. Both the RHS and NC State Extension say it usually recovers quickly after a thorough watering. Don’t make it a habit, though: repeated wilting leads to brown, shriveled leaves that drop.

Overwatering is just as harmful. Soggy soil causes root rot, and NC State Extension says yellowing leaves can signal too much water. Empty the saucer after watering. In a closed terrarium, water only occasionally, since the humid air keeps the soil from drying out.

Potting mix and repotting

The RHS recommends a moisture-retentive, peat-free houseplant compost or peat-free multipurpose compost. NC State Extension stresses good drainage. The roots are shallow, so a small pot is fine.

Nerve plants grow slowly and can stay in their original pot for several years. Repot when roots fill the pot, choosing a new one only slightly larger than the root ball. A pot that is too big holds water for too long.

Humidity and temperature

Humidity is the key to keeping a fittonia happy. The RHS says the leaves turn brown in dry air and recommends an enclosed terrarium, a steamy bathroom or a kitchen. Elsewhere, stand the pot on a wide tray of damp gravel or clay pebbles and keep the water topped up. NC State Extension warns that leaves shrivel and fall off in dry air, drafts or direct sun. It also notes that leaves may wither if humidity is too high, so give a sealed terrarium some fresh air now and then. Our houseplant humidity guide covers practical ways to raise it.

Keep the plant at 60°F (15°C) or warmer. The RHS says fittonias thrive in a room that stays above 63°F (17°C). Keep them away from cold drafts and from the dry heat of radiators and fires.

Fertilizing

Nerve plants are not heavy feeders. The RHS growing guide suggests feeding once every two or three months with a half-strength general-purpose or houseplant fertilizer. The RHS profile for the Argyroneura Group gives monthly feeding with a balanced liquid fertilizer during growth. Lean toward the lighter end and skip fertilizer in winter.

Propagation step by step

Fittonia is easy to propagate. The RHS lists stem-tip cuttings and division, and NC State Extension recommends stem cuttings. The creeping stems also root on their own, and the RHS lists layering in spring or summer as another option.

Stem-tip cuttings (spring and summer):

1. Choose strong, healthy stems and cut tips about 2 inches (5 cm) long.
2. Make the cut just below a pair of leaves.
3. Insert the cuttings upright in a pot of moist peat-free compost.
4. Cover with a clear plastic bag or place in a propagator to keep humidity high.
5. Keep warm and in bright, indirect light until they are well rooted.

Division:

1. Take the plant out of its pot.
2. Pull the root ball apart by hand into sections with at least three stems each.
3. Pot each section separately and water.

The RHS also recommends dividing a plant that has died off in the center: replant the healthy sections and discard the dead parts. Pinching the stem tips, according to NC State Extension, keeps the plant bushy and full. More options are in our guide to houseplant propagation methods.

Vein colors and cultivars

The colored veins of a nerve plant are not variegation in the strict sense. They are the natural leaf pattern of the species. The RHS recognizes two groups, both holding the Award of Garden Merit:

• Argyroneura Group (silver nerve plant): rich green leaves with a tracery of silvery white veins.
• Verschaffeltii Group (mosaic plant): deep olive-green leaves with pink veins.

Fittonias are often sold in mixed trays without a cultivar name. The RHS lists these cultivars you may come across:

• ‘White Anne’: green leaves with bright white veins.
• ‘Skeleton’: lime-yellow leaves with red veins.
• ‘Lemon’: lime-green leaves with white veins.
• ‘White Star’: almost white leaves with thin green veins.
• ‘Forest Flame’: red leaves with a dark green margin.
• ‘Pink Forest Flame’: pink leaves with a dark green margin.
• ‘Mistral’: dark green leaves with narrow pink veins.

Common problems

Symptom	Cause	Fix
Whole plant collapses	soil dried out	water thoroughly; it usually recovers quickly
Brown, crispy leaf edges	dry air, radiator heat, drafts	raise humidity, move away from heat sources
Scorched patches	direct sun	move near a north- or east-facing window
Yellow leaves	overwatering or too little light	let the soil dry slightly, give brighter indirect light
Mushy stems at soil level	soggy soil, root rot	water less, reroot healthy tips
Gray fuzzy mold	gray mold (Botrytis) in humid conditions	remove affected parts, improve air flow
Fine webbing, pale speckles	spider mites	see spider mites

NC State Extension also lists mealybugs, scale, slugs and leaf spot. The RHS adds that fittonias are generally trouble-free as long as they get humid air and regular watering.

Toxicity

The ASPCA lists nerve plant, under the older name Fittonia verschaffeltii, as non-toxic to dogs, cats and horses. NC State Extension tags it the same way. We found no source that addresses toxicity to people.