Plant care guide
Prayer Plant Curling Leaves: Normal Folding or Stress?
Updated
Why are my Prayer plant leaves curling?
Prayer plant leaves stand up and fold at night by design, and new leaves emerge as rolled tubes. Leaves that stay rolled inward by day usually point to dry mix, low humidity, direct sun or heat, cold drafts, or fluoride and fertilizer burn.
What to do first
Check the plant at midday. If leaves are rolled by day, check the mix first, then raise humidity, move it out of direct sun and drafts, and water with rainwater or distilled water.
A prayer plant that folds its leaves upright every evening is healthy. That movement gave it the name. Curling is different: the leaf blade rolls inward along its length and stays that way in daylight.
The prayer plant is Maranta leuconeura. It is a close relative of the calatheas, most of which are now classified as Goeppertia. The causes of curling overlap, but the care details differ slightly.
Normal Movement or a Problem?
NC State Extension’s Maranta leuconeura profile describes the daily cycle. By day, leaves are held parallel to the ground. At night they move to a perpendicular “prayer” position. University of Illinois Extension notes that the plant folds up its leaves in darkness.
NC State also notes that new leaves appear as a rolled tube. A tight scroll on a fresh stem will open as it grows.
Look at the plant at midday. Upright, firm, evenly colored leaves at night are normal. Leaves rolled inward at noon, with dull color or crisp edges, need attention.
Checks That Separate the Causes
NC State lists what this plant does not tolerate: direct sunlight, low humidity, low temperatures and cold drafts. It adds that leaves burn with high fluorides and with over-fertilization.
| What you find | Likely cause |
|---|---|
| Mix dry below the surface, pot light | Underwatering |
| Curling plus crisp brown tips, dry room air | Low humidity |
| Faded, bleached leaves in a sunny window | Too much direct sun |
| Rolling, bleaching and crisping in a hot room | Heat stress (RHS) |
| Curling near a door, vent or cold window | Cold drafts |
| Brown tips and margins, tap water or frequent feeding | Fluoride, chlorine or fertilizer salts |
| Limp stems at the base, mix wet | Crown or stem rot |
The RHS houseplant problems page describes wilting, rolling, bleaching and crisping leaves as signs of heat stress. It also notes that strong direct sun can scorch leaves and give them a washed-out look.
The University of Georgia’s Growing Indoor Plants with Success names peacock plant (Maranta) among plants susceptible to fluorine and chlorine in water.
Treatment Steps
- Check the mix first. NC State advises keeping the soil evenly moist through the growing season. If it is dry below the surface, water thoroughly and let the excess drain.
- Do not drench a wet plant. Illinois Extension warns not to let water stand on the crowns, because the stems rot easily. If the mix is wet and stems are soft at the base, check the roots and crown before watering again.
- Raise humidity. NC State recommends a humidified room or a pot standing on a tray of wet pebbles. Iowa State Extension notes home humidity can fall to 10–20 percent in winter. It also explains why misting is impractical: the leaves dry too quickly.
- Move it out of direct sun. Illinois Extension recommends diffused sun or bright, indirect light. NC State says the plant tolerates low to medium light, and that too much sun bleaches the leaf colors.
- Remove drafts and heat sources. Keep the plant in a warm, steady spot, away from radiators, air conditioners and cold glass.
- Change the water and cut back feeding. Use rainwater or distilled water if your tap water is fluoridated. UGA Extension advises flushing accumulated salts with large quantities of water and discarding water left in the saucer.
Winter Watering
NC State and Illinois Extension both advise easing off in winter. Keep the mix evenly moist in the growing season, but let the soil dry between waterings in winter. A plant watered on a summer schedule in a cool room can end up with wet roots and curling leaves.
What to Expect
Leaf edges that have turned brown and crisp keep that damage. Trim them with clean scissors if you prefer, leaving the green tissue.
Judge progress by new growth. New leaves that unroll fully, lie flat by day and fold at night show the plant is comfortable again.
Prayer plants are safe around pets. The ASPCA’s prayer plant entry, which lists Maranta among its common names, rates it non-toxic to dogs, cats and horses.
For year-round care, see our prayer plant care guide and the prayer plant hub. The calathea curling leaves guide covers the related genus, and our calathea and prayer plant comparison explains the differences.
Related guides
Other prayer plant problems we cover: propagation.
References
- NC State Extension Gardener Plant Toolbox: Maranta leuconeura
- University of Illinois Extension: Prayer Plant
- University of Georgia Extension: Growing Indoor Plants with Success (B1318)
- RHS: How to help a poorly houseplant
- Iowa State University Extension: How can I raise the relative humidity indoors for my houseplants?
- ASPCA: Prayer Plant (non-toxic to dogs, cats and horses)
How this guide was put together: NC State Extension, University of Illinois Extension, University of Georgia Extension, Iowa State University Extension, RHS and ASPCA guidance.