Plant care guide
Bird of Paradise Curling Leaves: Thirst, Dry Air or Pests?
Updated
Why are my Bird of paradise leaves curling?
Bird of paradise leaves are naturally concave, so a gentle cup is normal. Leaves that roll in tightly, curl along the edges or turn brittle usually point to a dry root zone, dry air or a cold draft. Curled, distorted new growth with sticky residue or insects points to sap-feeding pests.
What to do first
Check the mix below the surface first. Water a dry plant thoroughly and let it drain; leave a wet one alone and check the roots. Then move the plant away from heaters and cold glass, raise humidity in winter, and inspect leaf undersides.
A curling bird of paradise leaf looks like a plant in trouble. Often it is a plant asking for water or for a better spot. Before you change anything, decide whether the curl is normal shape or a new change.
Clemson Extension describes Strelitzia reginae leaves as thick, stiff and concave (Clemson HGIC 1562). A leaf that has always had a shallow trough is fine. Watch for leaves that roll tighter than before, curl at the edges, or feel dry and brittle.
Find the cause
| What you see | Most likely cause |
|---|---|
| Leaves rolling inward, mix dry well below the surface, pot light | Underwatering |
| Curling with brown, crisp edges, near a heater, in winter | Dry air |
| Leaf damage after a cold night, draft or cold window | Cold stress |
| Leaves sagging or folding while the mix stays wet and heavy | Root damage from wet mix |
| New leaves curled and distorted, sticky residue, small insects | Aphids or other sap feeders |
Underwatering. Virginia Cooperative Extension lists leaves curling upward or downward among the signs of an underwatered houseplant, along with dry or brittle leaves and brown edges (VCE: SPES-804). Clemson’s disorders factsheet says chronic underwatering causes wilting and leaf curling. A large plant in a small pot dries out fast in summer.
Dry air. Clemson suggests moderate humidity, around 60 percent, for bird of paradise. NC State Extension says Strelitzia nicolai prefers high humidity (NC State: Strelitzia nicolai). Winter heating dries the air most.
Cold. NC State says S. nicolai will not tolerate temperatures below 10 °C (50 °F), and advises avoiding cold drafts and sudden temperature changes. Clemson gives 10–13 °C (50–55 °F) as the night range for S. reginae, so a cold window in winter can push it lower.
Wet roots. NC State says root rot can occur from overwatering or poorly drained soil (NC State: Strelitzia reginae). Clemson lists excess water and root rot among the causes of wilting. If leaves sag or fold while the pot is heavy, suspect the roots, not thirst.
Pests. UC IPM says aphids sometimes make leaves curl and become distorted (UC IPM: houseplant problems). Clemson lists scales, mealybugs, whiteflies and aphids on bird of paradise. NC State adds spider mites.
What to do
If the mix is dry:
- Water until it drains from the base. VCE suggests several large applications so the whole root zone wets.
- Empty the saucer. VCE warns against leaving pots standing in water for more than an hour.
- Water again when the mix has dried slightly. That is Clemson’s method: soak thoroughly, then let it dry a little.
If the mix is wet:
- Do not water.
- Slide the plant out and check the roots and rhizome. Follow our bird of paradise root rot guide if they are soft and dark.
If the mix is fine:
- Move the plant away from heating vents and off cold window glass.
- Raise winter humidity. NC State suggests a tray of wet pebbles or a humidifier for S. nicolai.
- Inspect new leaves and undersides with a hand lens. Rinse off aphids and treat confirmed pests with an indoor-labeled product.
What to expect
Judge progress by the next leaf to unfurl. In winter, water less often, as Clemson and NC State advise, but do not let the root ball dry out completely.
For light, feeding and flowering, see our bird of paradise care guide. More pages are on the bird of paradise hub.
Related guides
Other bird of paradise problems we cover: drooping, brown spots, not blooming, overwatering, yellow leaves.
References
- Clemson Cooperative Extension HGIC 1562: Bird of Paradise
- NC State Extension Gardener Plant Toolbox: Strelitzia nicolai
- NC State Extension Gardener Plant Toolbox: Strelitzia reginae
- Virginia Cooperative Extension: Properly Watering Container Houseplants (SPES-804)
- Clemson Cooperative Extension HGIC 2251: Houseplant Diseases & Disorders
- UC Statewide IPM Program: Pest Notes, Houseplant Problems
How this guide was put together: Clemson Cooperative Extension, NC State Extension, Virginia Cooperative Extension and UC Statewide IPM Program guidance.