Denseflower mullein (Verbascum densiflorum)
Care, watering, light and tips for Denseflower mullein on Floravia.
Quick facts
- Family: Scrophulariaceae
- Difficulty: Easy to care for
- Watering: every 7 days
- Light: Partial shade
- Temperature: 10–30 °C
About Denseflower mullein
Verbascum densiflorum, commonly known as denseflower mullein or great mullein, is an impressive biennial plant renowned for its tall, densely packed flower spikes adorned with large, bright yellow blossoms. It can reach considerable heights (up to 2 meters), creating a spectacular focal point in cottage gardens, mixed borders, or naturalized meadow settings. Its presence adds vertical texture and a wild, majestic feel.
Native range
Europe and temperate Asia
Care tips
It thrives in full sun exposure to ensure abundant flowering. Once established, it is drought-tolerant, so watering should be moderate, avoiding waterlogging, especially during winter. It requires well-drained soil, preferably sandy or calcareous, and is not demanding regarding nutrients. A common mistake is overwatering, which can lead to root rot.
How to save a dying Denseflower mullein
- Warning signs
- Yellowish, wilted basal leaves or brown spots; scarce or no flowering.
- First aid
- Move to full sun, ensure good drainage, and water only when soil is dry.
- What kills it
- Excessive moisture and lack of direct sunlight. Does not tolerate waterlogging.
- Can it be saved?
- Yes, if you act quickly. Remove affected parts and adjust growing conditions.