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A picture of a Hoary Mullein

Hoary Mullein

Verbascum pulverulentum

Also known as

Broad-Leaf Mullein

Verbascum pulverulentum by Peter de Lange (http://creativecommons.org/publicdomain/zero/1.0/)

Full Sun
Easy care
Moderate watering
Frost Hardy

H4

RHS hardiness

-10°C

Minimum temperature

Expected size

Height
Spread

1.8m

Max

60cm

1.4m

Min

30cm

9 months to reach maturity

Flowering

  • spring
  • summer
  • autumn
  • winter

This plant has no fragrance

More images of Hoary Mullein

A photo of Hoary Mullein
A photo of Hoary Mullein
A photo of Hoary Mullein
A photo of Hoary Mullein
A photo of Hoary Mullein

Hoary Mullein Overview

Verbascum pulverulentum is a semi-evergreen short-lived perennial species that grows as a wild flower in Britain & Northern Europe. Commonly known as Hoary Mullein, it is very similar to V. lychnitis (White Mullein) whose native range overlaps and extends to Asia Temperate. Preferring free draining ground, this sun loving plant produces tall flowering spikes up to 1.8m tall in summer from a basal rosette of grey-green hairy leaves.

Common problems with Hoary Mullein

How to harvest Hoary Mullein

Flower spikes can be cut for floral arrangements as required. Collect seed in autumn once the seed heads have ripened. Store in paper bags or envelopes in cool dry conditions for use the next year.

How to propagate Hoary Mullein

Seed

Verbascum self-seeds readily, however young seedlings need to be moved in early autumn before they develop deep tap roots which do not like being disturbed. These seedlings from cultivars and hybrids may not produce the same flowers as their parents. Sow collected seeds in April or May into trays of pre watered seed compost. Maintain the temperature at 15º-18ºC out of direct sunlight. Germination should take between 14 to 30 days. Prick-out seedlings as soon as they are large enough to handle into individual pots and grow on in cool conditions. Plant out when the roots reach the bottom of the pot into their final position.

Special features of Hoary Mullein

Attractive flowers

Attracts useful insects

Drought resistant

Other uses of Hoary Mullein

These drought resistant plants suit being included in gravel and dry gardens as well as informal cottage garden mixed borders and wildlife friendly spaces.