Verbascum densiflorum
dense-flowered mullein
a rosette-forming, biennial or short-lived, semi-evergreen perennial with a dense covering of grey-yellow hairs. The wavy-margined basal leaves reach 45cm long, and the erect, branching, flower spikes packed with yellow, or sometimes white, flowers up to 5cm across, reach 1.8m
Size
Ultimate height
1.5–2.5 metresTime to ultimate height
1–2 yearsUltimate spread
0.5–1 metresGrowing conditions
Moisture
Well–drainedpH
AlkalineColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Green Grey Silver | |||
|---|---|---|---|---|
| Summer | Yellow | Green Grey Silver | ||
| Autumn | Green Grey Silver | |||
| Winter | Green Grey Silver |
Position
- Full sun
Aspect
South–facing
Exposure
ExposedDrought resistance
Yes Hardiness
H6Botanical details
- Family
- Scrophulariaceae
- Native to GB / Ireland
- No
- Foliage
- Semi evergreen
- Habit
- Columnar upright
- Genus
Verbascum can be annuals, biennials, perennials or subshrubs mostly with hairy leaves and 5-petalled, saucer-shaped flowers
- Name status
Correct
- Plant range
- Europe, Siberia
How to grow
Cultivation
Grow in poor, alkaline, well-drained soil in full sun. A drought-tolerant plant, it grows large and needs support in fertile soils
Propagation
Propagate by seed sown in containers in a cold frame in spring or early summer, or by root cuttings in winter
Suggested planting locations and garden types
- Cottage and informal garden
- Gravel garden
- Wildlife gardens
- Flower borders and beds
Pruning
Remove faded flower spikes
Pests
May be susceptible to mullein moth caterpillars and figwort weevil
Diseases
May be susceptible to powdery mildews
Get involved
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