Prayer plant leaves curling? Start with the water.
Marantas and calatheas fold their leaves every night, and that is normal. Leaves that stay rolled into tubes during the day are the plant protecting itself. With this family, the water is involved more often than the humidity.
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Is it your water?
Leaves curl and the edges are crisp and brown, even though you water on time.
It happens in a humid room or with a humidifier running.
You water from a city tap. New leaves open clean and then brown at the edge within weeks.
Two of three and it is the water:
Why prayer plants curl
Curling is how the plant reduces the leaf surface losing water. It happens when the roots cannot supply enough — because the soil is dry, the air is very dry, the light is too strong, or the roots are damaged.
This family has thin leaves and fine roots, and it is unusually sensitive to chlorine, chloramine, fluoride and dissolved salts. Those stress the roots and scorch the leaf margins, and the plant curls in response.
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Three steps to flat, open leaves
Keep the soil evenly moist, never soggy and never dust dry.
Switch to filtered water tonight and flush the pot once.
Move it out of direct sun to bright, indirect light.
Watering Can With Filter and Remineralizer for House Plants
Filters chlorine, chloramine, fluoride and lead as you pour, then adds back 20+ minerals
$69 · Free shipping · 30-day money-back guarantee
plus sales tax where applicable
Less than a season of distilled water jugs, and nothing to carry.
When it is not the water
If the soil is dry an inch down, it is thirst. If the plant sits in a sunny window, it is light. Spider mites also cause curling; check the undersides of the leaves for fine webbing.
The Tap Water Plant Guide
Which 12 houseplants react to tap water, how to tell water damage from overwatering, and four ways to fix it — including the free ones.
Frequently asked questions.
Better water, tonight's watering.
- $69 · Free shipping · 30-day money-back guarantee
- Free shipping
- 30-day money-back guarantee
- Replaceable filter packs