Verbascum densiflorum is a biennial or short-lived perennial. It is part of the Scrophulariaceae family of plants. It is native to Europe and Asia. Verbascum densiflorum grows to 1.8m or 6ft. They also call it Verbascum thapsiforme, or Dense-flowered Mullein.
Verbascum densiflorum is a rosette-forming plant. The basal leaves are about 45cm or 18in long. The leaves have wavy margins. It grows branching, flower spikes. The flowers are yellow sometimes white. The flowers were up to 5cm. Verbascum densiflorum flowers in the summer.
How to grow Verbascum densiflorum:
Grow Verbascum densiflorum in the sun. Plant it in poor, and well-drained soil. Use alkaline soil. It is drought-tolerant. It is pollinated by insects. Propagate Verbascum densiflorum by seed or by root cuttings. Remove the flower stalks after they are done. Verbascum densiflorum can produce a lot of seeds. Watch out for figwort weevil or powdery mildew.
They use Verbascum densiflorum in traditional medicine. The leaves contain rotenone which is an insecticide and coumarin which prevents blood clotting. They also make tea from the flowers which has a sedative effect.
Read about Verbascum pulverulentum.