Dark Mullein
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4Will it grow where I live?
Dark Mullein is hardy to zone 5 – that covers all of Central Europe and the British Isles, and every USDA zone from 5 upwards.
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Profile
- Family
- Scrophulariaceae
- Habit
- annual
- Height
- 1 m
- Spread
- 0.6 m
- Growth
- very fast
- Lifespan
- 2 years
- First yield
- after 1 year
- Hardiness
- zone 5–9
- Shade tolerance
- full sun
- Soil
- Sand, Silt, Loam
- Soil moisture
- very dry – moist
- pH
- 5.3 – 8.6
- Synonyms
- Dark Mullein, Black Mullein
Flowering & harvest
| J | F | M | A | M | J | J | A | S | O | N | D | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Flowering | ||||||||||||
| Leaf harvest |
Uses
Growing
Verbascum nigrum thrives in full sun to partial shade with well-drained loamy or sandy soils. It prefers neutral to alkaline pH and tolerates dry conditions. Sow seeds in late spring or early summer; germination takes 2-3 weeks. Avoid disturbing the taproot when transplanting. Deadhead spent flowers to encourage prolonged blooming. Water moderately, allowing soil to dry between watering.
Frequently asked questions
Dark Mullein: how big does it get?
Dark Mullein (Verbascum nigrum) grows as a annual and reaches roughly 1 m in height when mature, with a spread of about 0.6 m. Growth is very fast.
Dark Mullein: what site does it need?
Dark Mullein tolerates full sun. Suitable soils are Sand, Silt, Loam. Soil moisture should be in the range very dry – moist. The pH may lie between 5.3 and 8.6.
Dark Mullein: is it hardy?
Dark Mullein is listed as hardy in zone 5–9 and survives normal winters outdoors there.
Dark Mullein: will it grow in Central Europe?
Dark Mullein is hardy to zone 5 – that covers all of Central Europe and the British Isles, and every USDA zone from 5 upwards.
Dark Mullein: when does it flower?
In a temperate northern-hemisphere climate it flowers from June to September.
Dark Mullein: is it poisonous?
Individual parts of Dark Mullein are noted as mildly problematic — the plant does not count as poisonous. With wild plants, never rely on a database alone, only on a confident identification.
Dark Mullein: what is it used for?
Rated on a scale up to 10: Edible 1/10, Medicinal 6/10, Other uses 4/10.
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