Plant problem

Curling Leaves

Leaves curl inward, downward, crinkle, or crisp at the edges as a defensive response to stress — the direction and texture of the curl or crinkle narrow down the cause.

Common causes

Underwatering

Curling paired with dry, lightweight soil means the plant is conserving water by reducing its exposed leaf surface. Water thoroughly and keep to a more consistent schedule.

Heat or direct sun stress

Leaves curl and feel warm to the touch when scorched by intense light or heat. Move the plant back from the window or add a sheer curtain.

Low humidity

Thin-leafed tropicals like calathea and ferns curl — often described as crinkling — in dry air even with adequate watering. Raise humidity with a pebble tray, grouping, or a humidifier.