First, check the soil. Push a finger 2 to 3 cm (0.8–1.2 in) into it and lift the pot. Dry and light means thirst. Wet and heavy means too much water or poor drainage.
Most likely cause
A recent change or shock
How to tell
It started dropping leaves soon after you bought, moved, or repotted it.
The fix
1
Check moisture and roots before changing anything.
2
Keep its spot and care steady and don’t fertilize while it settles.
3
If roots were damaged, follow this plant’s repotting guidance.
More about this
Water according to moisture, only when the top 3 cm (1.2 in) of soil feel dry to the touch. Check drainage and do not water just because a calendar says it is time.
Other possible causes
Not a match? Compare the signs below to find the one you have.
Overwatering
Leaves yellow and then drop, and the soil stays wet for days after watering.
The fix
1
Ease off watering, check drainage, and inspect for rot in the roots if it feels soft.
Underwatering
Leaves drop after the soil has been bone dry for a while.
How to tell
Watch for limp, drooping leaves with dry soil first.
The fix
1
If the soil is bone dry, water thoroughly, then check it more regularly so it doesn’t dry out that far again.
Cold drafts or temperature swings
It sits in a draft, near a cold window, or next to a heater, and leaves fall after a cold snap or a sudden temperature swing.
The fix
1
Move it somewhere with stable, draft-free temperatures.
Too little light
It quietly sheds its lower and inner leaves over weeks while new growth stays small and pale.