Verbascum sinuatum, commonly known as the scallop-leaved mullein or wavyleaf mullein, is a perennial herb native to rocky slopes, open woodlands, and scrub areas in the Mediterranean region, including Central Asia and Israel. It typically grows to a height of 3.9-4.9 feet (1.2-1.5 meters) and is characterized by its erect inflorescence stem covered with stellate hairs. The foliage is notable for its deeply lobed, wavy margins, giving rise to the common name. Scallop-leaved mullein produces yellow, lamp-shaped flowers from late May to August, which are moderately showy and attract bees for pollen collection, although the plant does not produce nectar. The flowers have a unique corolla shedding mechanism that is triggered by touch or damage.

This species is valued for its drought tolerance and ability to thrive in poor, heavy soils, making it suitable for xeriscaping and naturalistic plantings. It is also used in wildflower gardens and as an ornamental feature in borders due to its distinctive foliage and flower structure. Scallop-leaved mullein prefers full sun but can tolerate partial shade and requires well-drained soil. While generally low-maintenance, it can be susceptible to root rot in overly wet conditions.CC BY-SA 4.0