Most likely cause

Overwatering is the leading cause of yellow leaves on a Fiddle Leaf Fig. These plants want their soil to dry out partway between waterings, and when it stays wet the roots are deprived of oxygen, start to rot, and fail to deliver water and nutrients to the leaves, which fade to yellow.

You can confirm it by the pattern. Overwatering yellows the lower leaves first, the affected leaves often feel soft and may carry brown spots, and the soil stays wet for many days. If the pot lacks drainage or sits in a full saucer, this is almost certainly the driver. Let the top two inches of soil dry out, empty the saucer, and the yellowing should stop spreading.

Other causes

These rank below overwatering but often overlap with it.

  • Nutrient deficiency. Old or unfed soil runs short; look for yellowing between the veins while the veins stay green, often across many leaves.
  • Too little light. Low light slows growth and fades older leaves to a dull, even yellow; the plant may also lean toward the window.
  • Natural aging. A single oldest lower leaf yellowing slowly is normal; the rest of the plant looks healthy.
  • Underwatering. Prolonged dryness yellows leaves alongside crispy brown edges, with bone-dry soil that pulls from the pot.

How to fix it

  1. Check the soil. Feel the top two inches. If it is wet, hold off watering until it dries out.
  2. Improve drainage. Use a pot with a drainage hole, empty any saucer, and switch to a fast-draining mix if the soil stays soggy.
  3. Water consistently. Water thoroughly only when the top two inches are dry, then let it drain fully.
  4. Brighten the light. Move the plant to bright indirect light near a window so it can photosynthesize properly.
  5. Feed during growth. In spring and summer, feed at quarter to half strength every few weeks if the soil is old or the plant is hungry.
  6. Refresh the soil. Top-dress or repot with fresh mix every year or two to restore nutrients.
  7. Remove spent leaves. Cut fully yellow leaves at the base with clean scissors to redirect energy to new growth.
CauseTell-tale signFix
OverwateringSoft lower leaves, wet soilLet top two inches dry, improve drainage
Nutrient deficiencyYellow between green veinsFeed at quarter to half strength, refresh soil
Too little lightDull even yellowing, leaningMove to bright indirect light
Natural agingSingle oldest leaf onlyTrim it, no action needed
UnderwateringBone-dry soil, crispy edgesWater thoroughly, keep consistent