What's wrong with your plant?
Likely causes of
Yellow leaves
- Too much waterPush a finger 2 cm (1 in.) into the soil. If it's wet, let it dry and check drainage.
- Low nutrientsOlder leaves yellow first. A balanced fertilizer can help if growth has also slowed.
- Too little lightMove the plant closer to a bright window and see if new growth comes in greener.
Starting points, not a diagnosis — what you see also depends on the plant and its conditions.
Likely causes of
Brown leaf tips
- Dry air or heatKeep plants away from radiators and heater vents, and group them to raise humidity.
- Uneven wateringWater thoroughly when the top soil is dry, rather than a little every day.
- Salt build-upFlush the pot with plain water every few months to wash out excess fertilizer.
Starting points, not a diagnosis — what you see also depends on the plant and its conditions.
Likely causes of
Drooping plant
- Thirsty plantThe pot feels light and the soil is dry. Water well and it should perk up within a day.
- Soggy rootsSoil is wet and stems feel soft. Hold off watering and check the roots.
- Sudden changeDrafts, heat or a recent move can cause a wilt. Give it a stable spot.
Starting points, not a diagnosis — what you see also depends on the plant and its conditions.
Likely causes of
White powder
- Powdery mildewA dusty white coating on the leaves. Remove badly affected leaves.
- Poor airflowSpace plants out so leaves dry quickly after watering.
- Wet foliageWater the soil rather than the leaves, and do it in the morning.
Starting points, not a diagnosis — what you see also depends on the plant and its conditions.
Likely causes of
Tiny insects
- Fungus gnatsSmall flies hovering over the soil. Let the top layer dry out between waterings.
- AphidsClusters on new growth and stems. Rinse them off or wipe with a soapy cloth.
- Spider mitesFine webbing and speckled leaves. Wipe the leaves and raise humidity.
Starting points, not a diagnosis — what you see also depends on the plant and its conditions.
Likely causes of
Slow growth
- Low lightGrowth stalls in dim rooms. Try a brighter spot.
- Crowded rootsRoots circling the pot or poking out of the base mean it's time to repot.
- Seasonal restMany plants slow down in winter. Water less and wait for spring.
Starting points, not a diagnosis — what you see also depends on the plant and its conditions.
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Maya Hartwell
Gardening Writer
Writes about indoor plants, herbs and seasonal planting.
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Daniel Marsh
Plant Care Writer
Focuses on plant health, soil, watering and troubleshooting common problems for indoor and outdoor plants.
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