Why are my Calathea orbifolia leaves curling?

Curling is almost always thirst or dry air. Check the top inch of soil — if it is dry, the plant is under-watered; if it is damp, the room is simply too dry and humidity needs to rise above 50%. Leaves often relax again within a day of correcting the cause.

Can I water a Calathea orbifolia with tap water?

Most tap water is too hard or too heavily chlorinated for this species, and it shows as brown, crisping leaf edges. Use distilled or rainwater, or leave tap water out overnight and accept that hard water will still mark the leaves over time.

Why are the leaf edges turning brown and crispy?

Crispy brown edges mean dry air, mineral build-up from hard water, or fertiliser salts. Raise humidity, switch to distilled water, and flush the soil. Trim the dead margins with clean scissors following the natural leaf shape.

Species care

Calathea orbifolia care: water, humidity, and why the leaves curl

Published June 5, 2026

The Calathea orbifolia is the plant people photograph and then quietly struggle to keep. Those broad, almost circular leaves — pale green banded with silver — are the whole appeal, and they are also the first thing to complain when something is off. The good news: this plant is not difficult so much as honest. It tells you exactly what it wants, in the language of curled edges and crisped tips. Learn to read it and it rewards you with a fresh leaf almost every fortnight through the growing season.

What it is

A member of the Marantaceae, the prayer-plant family, native to the humid lowland forests of eastern Bolivia. In the wild it lives on the shaded forest floor under a canopy that filters the light and a climate that rarely lets the air dry out. Everything below is an attempt to recreate that one sentence on your windowsill.

Light

Bright, indirect light. An east-facing window, or a few feet back from a brighter one, is ideal. Direct sun — even an hour of harsh afternoon light — bleaches the silver markings and scorches the leaf surface. Too little light, and the new leaves come in small and the stripes fade. If the colour is washing out, move it closer to the glass, not into the sun.

Water

This is where most orbifolias are lost — and usually to the water itself, not the schedule. The species is sensitive to the minerals and chlorine in hard tap water, which accumulate and burn the leaf margins brown.

Use distilled water, rainwater, or filtered water. If you only have tap water, let it stand overnight, but know that hard water will still mark the leaves over months.
Keep the soil lightly, evenly moist — never waterlogged, never bone dry. Water when the top inch begins to dry; in practice that is roughly weekly, less in winter.
Drain thoroughly. Soggy roots rot fast in a plant that also hates drying out, which is the tightrope orbifolia keeps you on.

Humidity

Aim for 50% or higher; 60% is where it thrives. Below 50%, the leaves curl and the edges crisp. Most homes sit around 30–40%, which is why this plant has its reputation.

Group it with other plants to create a humid microclimate.
Stand the pot on a tray of wet pebbles (base above the waterline).
A small humidifier nearby does more than misting ever will — misting raises humidity for minutes, not hours, and damp leaves overnight can invite fungal spots.

Soil and feeding

Plant in a peat-free, free-draining mix — a houseplant compost loosened with perlite or fine bark holds moisture without compacting. Feed with a diluted balanced liquid fertiliser, roughly monthly from April to September, at half the label strength. Stop feeding in autumn and winter; fertiliser salts left in dry soil are another cause of brown tips. Flush the pot with plain water every couple of months to wash mineral build-up through.

Keep it warm and steady: 18–24°C, away from draughts, radiators, and the cold pane of a winter window. Sudden temperature swings are read as an insult.

Reading the leaves

What you see	What it means	What to do
Leaves curling inward	Thirsty, or air too dry	Check soil; raise humidity above 50%
Brown, crispy edges	Hard water, dry air, or feed salts	Distilled water; flush soil; raise humidity
Faded silver stripes	Too much light, or too little	Move to bright indirect light
Yellowing lower leaves	Overwatering or waterlogged roots	Let the top dry; check drainage
Leaves folding up at night	Nothing — this is normal	Enjoy it; the family is named for it

That last one surprises people: prayer plants raise and fold their leaves on a daily rhythm, lifting at dusk and lowering by morning. A plant that moves at night is a healthy one.

The honest summary

Give the Calathea orbifolia soft water, steady moisture, humid air, and shade from direct sun, and most of its drama disappears. The hardest part is consistency — and consistency is exactly the thing a phone is good at remembering.

LeafPal logs this species with its real preferences already filled in — distilled water, weekly-ish, 50%+ humidity — so the reminder arrives the morning it matters, not a generic Sunday ping for every plant you own.