Problem

Why is my dark Mullein dropping leaves?

Verbascum nigrum

Leaf drop on a dark Mullein usually has one of three causes — watering, light or a pest. Walk through them in order before reaching for a treatment.

Dark Mullein (Verbascum nigrum)
Foto: Rasbak / Wikimedia Commons / CC BY-SA 3.0

Most likely causes

Detailed cause-by-cause guide is being prepared. In the meantime: check watering rhythm, sunlight match, and any visible pests on the underside of leaves.

Other problems with dark Mullein