Dense-flowered mullein (Verbascum densiflorum)
Dense-flowered mullein (Verbascum densiflorum) is a perennial plant that can grow 1.5m – 3m tall and 50cm – 1.5m wide. In this growing guide we’ll learn the cultivation details and how to plant Dense-flowered mullein (Verbascum densiflorum).
This plant is commonly known as dense-flowered mullein.
This is a semi-evergreen plant that takes 1-2 years to reach full maturity.
In this article
Plant profile
Common name: dense-flowered mullein
Scientific name: Verbascum densiflorum
Plant type: Perennials
Habit: Columnar / Upright
Height: 1.5m – 3m
Spread: 50cm – 1.5m
Foliage: Semi-evergreen
Sunlight: Full Sun
Soil: Chalk, Loam
Moisture: Well drained
Garden type: Informal Garden, Rock & Gravel Garden, Wildlife Gardens
Planting type: Flower borders and bedding
Other characteristics: Drought resistant, Plants for pollinators
Seasonal colors
| Season | Stem | Foliage | Flower | Fruit |
|---|---|---|---|---|
| Spring | ||||
| Summer | ||||
| Autumn | ||||
| Winter |
How to plant Dense-flowered mullein (Verbascum densiflorum) – Krzysztof Ziarnek, Kenraiz, CC BY-SA 4.0, via Wikimedia Commons
Perennial plants are one of the largest groups of plants.
They offer color, shape, fragrance and seasonal textures. The variety is such that there are plants to suit all sizes and styles of garden.
Traditionally, perennials are grown in borders, using a wall or hedge as a backdrop to bring out all their splendor during summer.
But since most gardens are not large enough for long borders dedicated exclusively to perennials, they are usually planted in mixed borders and beds, along with shrubs, annuals, biennials, and bulbs that extend the season of interest.
Other types of Verbascum to consider:
See all Verbascum
How to plant
In this section we will learn how to plant Dense-flowered mullein (Verbascum densiflorum), know its needs in terms of soil, watering and sun exposure.
Soil
Dense-flowered mullein (Verbascum densiflorum) is a plant that prefers to grow in chalk or loam.
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The chalky soil is pale and contains chunks of calcium-rich rock. It is a fertile and well-draining soil, almost always alkaline.
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The loam soil is dark, rich in organic matter but balanced in minerals. It offers the best of all worlds, retaining enough water for the plants, but allowing excess moisture to drain away. This is the most desired type of garden soil, perfect for most plants.
As for pH, it is a plant that grows ideally in soils with pH alkaline pH.
Regarding drainage, Verbascum densiflorum likes to grow in well drained soil.
Sunlight
Dense-flowered mullein (Verbascum densiflorum) should be grown in full sun places.
Cultivation profiles – Growing Dense-flowered mullein (Verbascum densiflorum) – Krzysztof Ziarnek, Kenraiz, CC BY-SA 4.0, via Wikimedia Commons
