Why Houseplants Drop Leaves in November and How to Help Them

Houseplants often shed leaves in November as indoor conditions shift with the onset of heating season, shorter days, and colder window drafts. While losing an occasional older leaf is normal, widespread drop of green or yellow foliage signals environmental stress that can be corrected.

Main triggers

Three factors drive most autumn leaf loss: temperature swings near windows, dry air from central heating, and reduced daylight. Tropical species such as ficus varieties — including fiddle leaf fig, weeping fig, and rubber tree — react sharply to even subtle chills. Alocasia, Boston fern, and Calathea suffer when humidity falls, showing crispy edges and curling leaves even if soil stays moist. Lower light also slows photosynthesis, prompting plants to shed foliage they can no longer support.

Practical steps

• Move sensitive plants away from cold glass and drafty doors; keep daytime temperatures above 60 °F (16 °C).
• Raise humidity with a pebble tray, humidifier, or by grouping plants together.
• Supplement light with a grow lamp on a 12‑hour timer if natural light is weak.
• Water only when the top inch of soil is dry; avoid fertilizer until active growth resumes.

Before you start: Check for pests or root rot before assuming the cause is environmental; if leaves blacken or stems turn mushy, consult a local extension service or plant professional.