Dark Mullein, Black Mullein

Verbascum nigrum

Family: Scrophulariaceae (skrof-yoo-larr-ee-AY-see-ee) (Info)
Genus: Verbascum (ver-BASK-um) (Info)
Species: nigrum (NY-grum) (Info)



Foliage Color:

Unknown - Tell us

Bloom Characteristics:

Unknown - Tell us

Water Requirements:

Average Water Needs; Water regularly; do not overwater

Where to Grow:

Unknown - Tell us


24-36 in. (60-90 cm)


18-24 in. (45-60 cm)


USDA Zone 3a: to -39.9 C (-40 F)

USDA Zone 3b: to -37.2 C (-35 F)

USDA Zone 4a: to -34.4 C (-30 F)

USDA Zone 4b: to -31.6 C (-25 F)

USDA Zone 5a: to -28.8 C (-20 F)

USDA Zone 5b: to -26.1 C (-15 F)

USDA Zone 6a: to -23.3 C (-10 F)

USDA Zone 6b: to -20.5 C (-5 F)

USDA Zone 7a: to -17.7 C (0 F)

USDA Zone 7b: to -14.9 C (5 F)

USDA Zone 8a: to -12.2 C (10 F)

USDA Zone 8b: to -9.4 C (15 F)

Sun Exposure:

Full Sun


Unknown - Tell us

Bloom Color:

Bright Yellow

Bloom Time:

Mid Summer

Late Summer/Early Fall




Other details:

Unknown - Tell us

Soil pH requirements:

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

7.6 to 7.8 (mildly alkaline)

7.9 to 8.5 (alkaline)

Patent Information:


Propagation Methods:

By dividing the rootball

From seed; direct sow outdoors in fall

From seed; winter sow in vented containers, coldframe or unheated greenhouse

From seed; sow indoors before last frost

From seed; direct sow after last frost

Seed Collecting:

Allow pods to dry on plant; break open to collect seeds


This plant has been said to grow in the following regions:

Amesti, California

Richmond, California

Barbourville, Kentucky

Calvert City, Kentucky

Rochester, New York

Gardeners' Notes:


On Aug 18, 2012, Alanhughes from Porthcawl
United Kingdom wrote:

Two of these plants appeared of their own accord last autumn in a relatively untended part of my garden in Porthcawl, S.Wales. I had no idea where they had come from or what they were, but decided to let them grow and see what became of them.

This season both plants have thrived, reaching a height of nearly 6 feet, with several large flower 'spikes'. Thanks to the internet I have been able to identify the plants as 'Verbascum nigrum'.


On Jan 28, 2003, Baa wrote:

A short lived perennial from Europe and Russia.

Has deep green, oblong, smooth on the top surface but hairy beneath, wavy edged leaves that have heart shaped bases. Bears saucer shaped, yellow flowers with light purple filaments.

Flowers late May - September

Loves a well-drained, slightly alkaline soil in full sun. A good plant for naturalising in a wild flower garden.