In the second year, the plants usually produce a single branched stem, usually reaching 1 to 2 m tall. The stem is central and angular.
Leaves
It produces a rosette of leaves in its first year of growth. The leaves are large and can reach 50 cm long. The leaves are single or alternate, stalked, dark green and very hairy.
Flowers
The inflorescence is a dense spike of yellow flowers with purple, very hairy stamens; it can take up to half the length of the stem. Flowering starts at the bottom of the spike and moves irregularly upward.
Common mullein in the garden
Sun exposure
Full sun
Sources
Plant profiles from the course “Wild Medicinal Plants”, eJardin Academy
