Orange mullein (Verbascum phlomoides)

Orange mullein

Also known as: Clasping mullein

Orange mullein (Verbascum phlomoides) is an indigenous Eurasian species that has naturalized across North America. It is a drought-tolerant plant cultivated ornamentally for its large leaves and yellow flowers that bloom on tall spikes during summer. Its flowers have a faint honey-like scent.

Scientific classification

Species

Orange mullein (Verbascum phlomoides)

Mints plantains olives and allies

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50 cm to 2 m

Plant Height

60 cm

Spread

Green, Gray, Silver

Leaf Color

3 cm to 5 cm

Flower Size

Yellow

Flower Color

Green, Gray, Silver

Stem Color

Evergreen

Leaf type

20 - 35 ℃

Ideal Temperature

Images of Orange mullein

Distribution of Orange mullein

Distribution Map

Orange mullein is a plant species that is endemic to temperate zones of Europe and parts of western and central Asia. It has been introduced to various regions which include parts of northern and western Europe, as well as in North America. Orange mullein has hence expanded its presence from its natural habitats to a broader global range through introductions to these diverse temperate locales.

Native

Cultivated

Invasive

Introduced

No species reported

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Habitat

Dry sandy or stony ground

Hemisphere Trend Curve

Northern

Sorthern

Care Guide for Orange mullein

Every week

Water

Full sun

Sunlight

20 - 35 ℃

Ideal Temperature

Water: Orange mullein thrives in dry, rocky soils of Europe, requiring minimal watering—approximately once a week. It prefers a well-draining substrate and needs consistent moisture during its active growth cycle to support flower development. This biennial herb is best suited for outdoor cultivation.

Fertilize: For optimal growth of orange mullein, use balanced fertilizers in spring and summer, prioritizing high-nitrogen options initially. Feed quarterly, avoiding overfertilization. Reduce feeding in fall and winter, and always dilute fertilizers per label instructions, applying to moist soil to prevent root burn.

Pruning: Orange mullein displays tall spikes of bright orange flowers and fuzzy leaves. Prune in early to late spring, removing spent spikes and old growth to encourage new shoots. Trim dead foliage for health; clean tools prevent disease spread. Proper pruning enhances air circulation and plant vigor.

Propagation: Orange mullein is a biennial that propagates easily by sowing. For germination, scatter seeds on well-drained soil in full sun, lightly covered. Regular, careful watering is crucial to avoid waterlogging. Thin seedlings when sizable to promote strong growth in the garden.

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Images of Orange mullein

Distribution of Orange mullein

Care Guide for Orange mullein

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