Winter Care for Container Citrus Trees Indoors

Why Citrus Struggles Indoors

Citrus trees are accustomed to intense Florida sun, sandy soil that dries quickly, and cool winter nights. Replicating these conditions indoors is challenging but essential to prevent leaf drop and decline.

Light: The Critical Factor

Place trees directly in front of a large, unobstructed south-facing window. If natural light is insufficient, supplement with a 2- or 4-tube fluorescent fixture hung close to the canopy. An enclosed, unheated south-facing porch is ideal.

Temperature and Humidity

Citrus prefers cooler nights (around 50–55°F). Lower your thermostat 10–12°F at night if possible. Avoid hot, dry air from heating vents.

Watering: Less Is More

In winter, water no more than once every two weeks. Citrus roots rot easily in soggy soil. When the surface feels dry, the root zone may still be wet—check by gently lifting the plant or using a moisture meter. Never let the pot sit in a water-filled saucer.

Spring Transition

Move trees outdoors as early as spring temperatures allow. Gradually acclimate them to full sun to avoid leaf burn.