
Why Are My Plant Leaves Turning Yellow?
Start with the pattern: one old leaf, several leaves in wet soil, dry yellowing, or pale speckles with pest marks. Each needs a different response.
Read the guidePlant profile
Boston fern fronds can brown after the root ball dries hard or beside hot airflow. A firm crown and green fiddleheads show what can regrow after damage.
Check this plant
Keep evenly moist in a draining pot; avoid full dry-downs.
Bright filtered light or gentle morning light.
Drainage
medium
Root rot risk
medium
Check pot weight before fronds crisp at the edges.
Move away from heat vents and dry windowsills.
Look inside the dense fronds for mites if browning is patchy.
Useful guides

Start with the pattern: one old leaf, several leaves in wet soil, dry yellowing, or pale speckles with pest marks. Each needs a different response.
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Check the root ball, fertilizer history, water source, and air near the leaves. Brown tips are permanent, but the cause of fresh tip burn can be corrected.
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Check the same pot by soil depth and weight. Ferns, foliage plants, and drought-tolerant plants need different amounts of drying between waterings.
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Feel the root ball before watering. Dry soil, wet roots, and a dry center after repotting can all leave a peace lily limp.
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Check leaf age, moisture inside the root ball, and pest marks to decide what a yellow monstera leaf needs.
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Use the spot’s location, texture, and change over time to decide whether to check roots, exposure, pests, or leaf disease.
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