An easily grown plant, it succeeds in most well-drained soils, including dry ones, and prefers a sunny position. Dislikes shade and wet soils. Thrives on chalk. Prefers a light soil. This species is hardy to at least -15°c. Hybridizes with other members of this genus, though the progeny are usually sterile. Plants can perennate when growing in light well-drained soils.
Verbascum phlomoides is a BIENNIAL/PERENNIAL growing to 1.2 m (4ft).
It is hardy to zone (UK) 6. It is in flower from June to September, and the seeds ripen from August to October. The species is hermaphrodite (has both male and female organs) and is pollinated by Insects. The plant is self-fertile.
Suitable for: light (sandy), medium (loamy) and heavy (clay) soils and prefers well-drained soil. Suitable pH: acid, neutral and basic (alkaline) soils and can grow in very alkaline soils.
It cannot grow in the shade. It prefers dry or moist soil.
This plant is useful.
How to get rid of:
Spray the common mullein weeds with a 2 percent solution of glyphosate or triclopyr and water, mixed with a non-ionic surfactant, following the instructions on the label exactly.