A fiddle leaf fig yellows its leaves for five reasons, and the pattern sorts them. Lower leaves yellowing, often with dark spots, in soil that stays wet is root rot, the most common cause. The whole plant going evenly pale, with small new leaves, in a spot away from a window is too little light. Older leaves yellowing evenly in a pot that has not been fed or repotted in years is hunger. Leaves that droop and yellow with crisp brown edges and dry soil is thirst. And one old lower leaf yellowing and dropping every so often while the plant grows is normal.
Count the yellow leaves, note where they are, look for spots, and feel the soil below the surface.
What the pattern tells you
| What you see | Most likely cause | Check this first |
|---|---|---|
| Lower leaves yellowing, dark brown spots from the midrib outward, soil wet days after watering, leaves dropping | Root rot from overwatering | Root check |
| Whole plant evenly pale yellow-green, new leaves small, plant leaning toward the light | Too little light | Distance from a large window |
| Older leaves yellowing evenly, growth slow, same soil for years, no feeding | Nutrient shortage | Last feed; last repot |
| Leaves droop, yellow and crisp brown at the edges, soil dry and shrunk from the pot | Underwatering | Soil to the bottom; pot weight |
| One old lower leaf yellow and dropping, plant otherwise green and growing | Natural shedding | Nothing else changed |
| Yellowing with stippling, webbing, sticky film or brown bumps | Pests | Undersides and stems |
Root rot from overwatering
Fiddle leaf figs need their soil to dry partway between waterings. In soil that stays wet, the roots suffocate and rot, and the plant sheds the leaves it can no longer supply, from the bottom up. The lower leaves yellow, usually with dark brown spots spreading from the midrib and veins, and drop. The soil is wet days after watering, the pot is heavy, and it may smell sour.
What to do: slide the plant out of its pot. Healthy roots are white to tan and firm; rotted ones are brown, soft and pull apart. Cut rotted roots back to firm tissue, remove the old soil, and repot in a fresh airy mix (potting soil with plenty of bark and perlite) in a pot with drainage, no larger than the roots need. Water once to settle the mix and then not again until the top few centimetres are dry. Remove leaves that are more than half yellow. Leaf drop may continue for a couple of weeks and then stops as new roots form, which takes three to six weeks.
Too little light
A fiddle leaf fig wants the brightest spot in the house, right beside a large window. Away from it the plant cannot make enough food for all its leaves, and it pales evenly, makes new leaves that are small, and leans toward whatever light there is. The yellowing is slow and spread across the plant rather than concentrated at the bottom.
What to do: move it beside a large window, an east one or a south one with a sheer curtain, and turn it a quarter turn each week so it grows straight. Move into stronger light gradually over a couple of weeks to avoid scorching. Improvement shows in the next new leaves.
Nutrient shortage
A fig in the same soil for two or three years without feeding runs short of nitrogen, and its older leaves yellow evenly while the newest stay green, with slow small growth. What to do: feed at half the label strength monthly through spring and summer, or repot into fresh mix one size up if the roots fill the pot. Do not feed a plant that is yellowing from rot or drought.
Underwatering
A fig left dry droops its leaves, yellows them, and browns and crisps the edges, lower leaves first. The soil is dry to the bottom and often shrunk from the pot's rim. What to do: water thoroughly until it runs from the drainage hole; if the soil has shrunk, stand the pot in a basin of water for twenty to thirty minutes to rewet from below. Then check the soil by finger weekly.
Natural shedding
A fig retires its lowest, oldest leaves one at a time as it grows: the leaf yellows evenly over a week or two and drops, while the rest of the plant is firm and green and new leaves are forming at the top. What to do: nothing; remove the leaf when it is fully yellow.
Pests
Spider mites, scale and mealybugs weaken a fig and yellow its leaves in patches around the feeding damage. Look for fine stippling and webbing on the undersides, brown bumps along the midribs and stems, white cottony specks, and a sticky film. What to do: wipe, treat with insecticidal soap or horticultural oil weekly for a month, isolate.
The root check
When lower leaves are yellowing and the soil is wet, look at the roots before changing anything else. Tip the pot, support the trunk, and slide the root ball out. White and firm is healthy, and the cause is elsewhere; brown and soft is rot, and the repot above is the fix.
What to do today, by cause
- Root rot: unpot, trim rotted roots, repot in airy mix, water only when the top is dry.
- Too little light: move beside a large window, gradually.
- Nutrient shortage: feed at half strength monthly in the growing season, or repot.
- Underwatering: soak thoroughly, rewet from below if the soil has shrunk, check weekly.
- Natural shedding: remove the leaf and change nothing.
- Pests: wipe, treat weekly for a month, isolate.
Frequently asked questions
Should I cut yellow leaves off a fiddle leaf fig?
Remove leaves that are more than half yellow; they will not recover and the plant does not need them. Cut the leaf stalk near the trunk with clean scissors. Leave leaves that are only slightly yellow until the cause is fixed.
Why are my fiddle leaf fig's bottom leaves turning yellow?
Most often because the roots are sitting in wet soil and rotting, especially if the leaves also have dark spots. One bottom leaf every few months is normal shedding; several at once with wet soil is rot. Slide the plant out and look at the roots.
Can yellow fiddle leaf fig leaves turn green again?
No. Yellowed tissue does not regain its colour. A leaf that is only slightly yellow can stop where it is once the cause is fixed, and new leaves come in green.
How much light does a fiddle leaf fig need?
More than most houseplants: the brightest indirect light in the house, directly beside a large window, with a few hours of gentle morning sun welcome and hot afternoon sun through glass filtered. A fig several metres from a window pales and stalls.