Plant care guide
Calathea Orbifolia Yellow Leaves: Age, Water, Light or Pests?
Updated
Why are my Calathea orbifolia leaves turning yellow?
One old leaf yellowing on a calathea orbifolia is usually normal aging. Several leaves yellowing at once most often point to overwatering and root damage, with too little fertilizer, too much light, drafts or spider mites as other causes.
What to do first
Note which leaves are yellowing, then check the mix and roots before watering again. Let a wet pot dry slightly, remove rotted roots, and correct light, feeding or drafts only after the roots are ruled out.
Yellow leaves on a calathea orbifolia do not always mean something is wrong. The pattern tells you more than the color. Look at which leaves are yellowing, how fast, and what the mix feels like before you change anything.
Calathea orbifolia is now classified as Goeppertia orbifolia. NC State Extension’s Goeppertia orbifolia profile still lists the old Calathea names, so you will see both on plant labels.
Read the Pattern
| What you see | Most likely cause |
|---|---|
| One older, outer leaf yellows and dies back slowly | Normal aging |
| Old and new leaves yellow at the same time, mix stays wet | Overwatering and root damage |
| Yellowing with dark, mushy roots or a blackened crown | Root or crown rot |
| General pale yellowing, slow growth, no recent feeding | Low fertilizer |
| Yellowing on leaves facing a bright, sunny window | Too much light |
| Yellowing with dry edges near a door, vent or cold window | Drafts |
| Fine speckling, yellowing or silvery leaves | Red spider mite |
The RHS houseplant problems page notes that older leaves on healthy houseplants naturally brown and die back as a plant matures. It describes old and new leaves yellowing and dropping together, with dark, mushy roots, as signs of overwatering. It also links draughts with yellowing leaves and dry edges.
UF/IFAS Extension’s Calathea guide lists three causes of leaf chlorosis: low fertilizer, overwatering, or high light levels. Its suggested fixes are to increase fertilizer, particularly nitrogen and iron, reduce watering frequency, or reduce light.
The RHS calathea guide names red spider mite as a calathea pest. It shows as speckled, yellowing or silvery leaves.
Check the Roots First
Overwatering is the cause to rule out first. Watering a plant with damaged roots makes the problem worse.
- Feel the mix well below the surface. NC State says orbifolia needs mix that is consistently moist but not wet or soggy.
- Lift the plant from its pot. The RHS suggests checking whether water has collected in the base, and tipping it away.
- Inspect the roots. University of Maryland Extension lists yellowing, browning and dieback of leaves, with browned or blackened crowns and roots, as root rot symptoms. With Pythium rot, the outer root pulls away easily and leaves a thin thread behind.
- Remove damaged roots. Cut away soft, dark roots with clean scissors. Repot healthy sections in fresh, well-drained mix and a clean pot with a drainage hole.
- Water less often, not less thoroughly. UF/IFAS advises letting the surface of the mix dry slightly before watering.
University of Maryland Extension also advises using clean pots and sterile potting media, and keeping infected plants apart from healthy ones. Badly affected plants can be propagated from unaffected tissue; for orbifolia, that means dividing off a healthy section.
If the Roots Are Healthy
Feeding. NC State recommends fertilizing monthly in the growing season. If you have not fed since spring and the whole plant is pale, a balanced feed may help. Do not overcorrect; UF/IFAS links excess fertilizer to brown leaf margins.
Light. Move the plant out of direct sun. NC State recommends bright, indirect light or partial shade.
Drafts. NC State advises avoiding cold drafts and temperature swings, with a steady 18–24 °C (65–75 °F).
Pests. Check the undersides of several leaves with a hand lens. If you find mites, keep the plant away from your other houseplants while you treat it.
What to Do With Yellow Leaves
A yellow leaf will not turn green again. Leave a partly green leaf in place while it still has color. Remove a leaf that is mostly yellow or brown at the base of its stalk with clean scissors.
Judge progress by new leaves. If they open green and stay green, the cause is under control.
For related problems, see the calathea drooping guide and the calathea curling leaves guide. Our guide to overwatered or underwatered houseplants explains the root checks in more detail. The calathea orbifolia hub lists everything we have on this plant.
Related guides
Other calathea orbifolia problems we cover: care guide, curling leaves.
References
How this guide was put together: NC State Extension, UF/IFAS Extension, University of Maryland Extension and RHS guidance.