Verbascum thapsus · Scrophulariaceae

Great Mullein

⚠️ Not safe for petsBiennial life cycle, flowering in the second year after planting.60 to 120 cm

LightFull sun

WaterLow

DifficultyEasy

ColdResistant down to -10°C

Full sunLowEasyResistant down to -10°C

Description & origin

Great Mullein is a biennial herb known for its tall spikes of yellow flowers. It often grows in dry areas and is appreciated for its resilience and beauty.

Size

Can reach heights between 60 to 120 cm depending on growing conditions.

Foliage

Large, woolly leaves that can reach up to 30 cm in length.

Flowering

Blooms in summer, producing spikes of yellow flowers.

Detailed care

Light

Prefers full sun but can tolerate partial shade in hotter climates.

Soil

Prefers well-drained, slightly sandy or rocky soils.

Watering

Requires infrequent watering as it is quite drought-resistant.

Temperature

Resistant to low temperatures but should be protected from severe frosts.

Fertilising

Organic fertilizer in spring can help growth but is not strictly necessary.

Repotting

Transplant in spring when plants are actively growing.

Pruning

Light pruning after flowering to maintain shape and encourage growth.

Propagation

Can be propagated by seeds or division of clumps.

Common problems

Aphid infestations

Can infest the leaves, causing damage and reducing plant vitality.

Fungal diseases

In overly humid conditions, it can develop fungi that affect the leaves.

Wilting

Can occur if the plant is overwatered or if the soil does not drain well.

Uses & curiosities

In the garden

Ideal for borders and flower beds
Attracts pollinators to the garden
Drought-resistant ornamental plant

Other uses

Used in traditional medicine and infusions.

Did you know…

The flowers of Great Mullein attract pollinators such as bees and butterflies. It has been used in traditional medicine for various purposes.