trefle.io · Taken Sep 4, 2021 by Maloriak (cc-by-sa)
Scrophulariaceae
Dense-flower mullein
Verbascum densiflorum
Also known as Bigflower mullein, Dense-flowered mullein, Verbascum densiflorum, Verbascum thapsiforme var. bicolle
Native Plants · Mullein · Verbascum · Yellow Flowers · Biennial · Pollinator · Drought Tolerant · Cottage Garden · Self-Seeding · Medicinal Herb · Tall Perennial
Dense-flower mullein is a stately biennial or short-lived perennial that produces tall, dramatic spikes of bright yellow flowers beloved by pollinators. It thrives in full sun with poor to average, well-drained soil and is very tolerant of dry conditions once established. Allow spent flower stalks to stand for birds to feed on the seeds, and it will readily self-seed in suitable spots.
Growing conditions
The details behind the basics
- Daily light
- 7 hours
- Watering
- Water moderately; allow soil to dry out between waterings as it prefers well-drained conditions · Every 10-14 days
- Maintenance
- Low
- Soil
- loam
- Soil pH
- 7.5–8
- Temperature
- 0°F to 90°F
- Cycle
- Perennial
- Propagation
- Seed, Cutting
Hardiness
USDA 5a-9b
Form & growth
Mature size and habit
- Mature height
- 2 ft – 5 ft
- Spread
- 3 ft
- Spacing
- 24 in apart
- Growth rate
- Moderate
- Root depth
- Medium
- Flowers
- No
- Foliage
- Medium
Ecology & origin
Where it belongs and what it brings
- Native to
- Albania, Austria, Baltic States, Belarus, Belgium, Bulgaria, Central European Rus, Chile Central, Czechoslovakia, Denmark, East European Russia, France, Germany, Greece, Iowa, Italy, Krym, Madeira, Masachusettes, Michigan
- Attracts
- Bees, Butterflies, Moths
Sources: trefle, usda
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