Philodendron Brandtianum (Silver Leaf) problems — and how to fix them

Usually overwatering (often with root rot), but can also stem from underwatering, too little light, or over-fertilising. Check soil moisture and roots first; root-rot yellowing tends to start on lower leaves.

Caused by soggy, poorly draining soil or no drainage hole. Let the top 2.5-5 cm dry between waterings, use a chunky aroid mix, and repot into fresh medium if roots are brown and mushy.

Typically low humidity, underwatering, or fertiliser salt build-up. Raise humidity, keep watering consistent, and flush the soil to clear excess salts.

Spider mites, mealybugs, aphids and scale can appear, especially in dry air. Inspect leaf undersides and treat with insecticidal soap or neem oil, repeating until clear.

Too little light reduces the silvery markings and stretches the stems. Move to brighter indirect light and give it a moss pole to support larger, better-marked leaves.

Pale, bleached or burnt patches indicate harsh direct sun. Move the plant slightly back from the window or diffuse the light with a sheer curtain.