Fittonia Care Guide

Fittonia, commonly known as the nerve plant, is a genus of compact, low-growing foliage plants in the family Acanthaceae. Native to the tropical rainforests of South America, these striking plants are prized for their intricately veined leaves and vibrant shades. In the wild, they carpet the forest floor beneath dense canopy, thriving in warm, humid shade.

Whether displayed as a tabletop plant or tucked inside a terrarium, this guide covers everything you need to keep your Fittonia healthy and vibrant.

What lighting is best for Fittonias?

In the wild, Fittonias grow on the forest floor beneath dense canopy, receiving very little direct sunlight. Indoors, replicate this by placing your plant in a position with bright, indirect light. A north or east-facing windowsill is ideal, or a spot one to two metres from a south-facing window filtered through sheer curtains.

Avoid direct sunlight, which quickly scorches the delicate foliage and causes leaf edges to brown and crisp. On the other hand, too little light leads to leggy, sparse growth and faded leaf colour.

What humidity is best for Fittonias?

High humidity is essential for Fittonias. As tropical understory plants, they thrive at humidity levels of 60% or higher.

Kitchens and bathrooms with good natural light are excellent spots. For the ultimate low-maintenance humidity solution, consider growing Fittonias in a closed or partially sealed terrarium, where moisture levels naturally stabilise.

How often do Fittonia need to be watered?

Watering is where Fittonias demand the most attention. Keep the compost consistently moist during the growing season in spring and summer, but never waterlogged. Check the soil every few days and water when the top centimetre feels dry to the touch. In autumn and winter, reduce frequency slightly but never let the plant dry out completely.

Underwatering causes rapid, dramatic wilting. The good news is that Fittonias bounce back quickly once watered, making the wilt a useful signal. Overwatering, however, leads to root rot that is far harder to reverse. Always water at the base of the plant rather than overhead, and empty any excess from the saucer promptly.

Hard tap water can cause brown leaf tips over time, so if your water is very hard, consider collecting rainwater or using filtered water.

When should I repot my Fittonia?

Fittonias have shallow root systems, so they do well in smaller, shallower pots rather than deep containers. Repot every spring, or whenever the plant becomes visibly root-bound. Roots growing through the drainage holes or circling the soil surface are clear signs it is time.

For the potting mix, Fittonias need well-draining, airy compost that retains some moisture without becoming waterlogged. We recommend our Simply Houseplant Potting Mix, formulated with a base of coco coir, bark, and perlite for the ideal balance of drainage and moisture retention. It comes pre-amended with a balanced nutritional profile to support healthy foliage growth for the first six to eight weeks after repotting.

Common Fittonia Problems and How to Solve Them

Wilting and Drooping Leaves

This is the most common Fittonia issue and almost always signals underwatering. Water immediately and the plant should recover within a few hours. If wilting recurs frequently, you may need to increase your watering frequency or raise humidity levels around the plant.

Brown Leaf Tips

Usually caused by low humidity or hard water. Increase humidity using the methods above and consider switching to filtered or rainwater. You can trim affected tips with clean scissors for a tidier appearance.

Yellowing Leaves

Yellow leaves are often a sign of overwatering or poor drainage. Allow the compost to dry out slightly between waterings and check the roots. If they are black and mushy, root rot has set in. Repot into fresh, well-draining compost and trim away any affected roots.

Leaf Drop

Leaf drop usually indicates temperature stress, cold draughts, or a sudden change in environment. Keep temperatures consistently between 18 and 24°C and never below 15°C. Move the plant away from draughty windows, exterior doors, and radiators, and avoid repositioning it abruptly.

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