Indoor Banana Plant: Brown Edges, White Dots, and Cold Trunk

The Symptoms

A potted banana in a Canadian bedroom has 4 leaves with brown edges, tiny white dots, and a cool‑feeling trunk. A new leaf is emerging but growth seems stalled.

Diagnosis

• White dots = aphids (common on indoor bananas).
• Brown edges = underwatering or low humidity. Bananas need consistently moist soil and high humidity.
• Cool trunk = root zone too cold or wet.

Fixes

1. Spray with insecticidal soap or soapy water to eliminate aphids.
2. Water daily around the pot edge; once weekly, drench fully. Empty saucer within 15 min.
3. Mist leaves daily; use a humidifier.
4. Ensure the pot isn’t sitting on a cold floor—use a plant stand.