This grower is sure of this plant identification.
This imposing, spreading, landscaping perennial has leaves growing up to 5 feet tall and 4 feet wide and will form large colonies in time. The posy like flowers emerge in early spring before the foliage as creamy white rounded clusters at the ground and are popular with flower arrangers. Its a spreader though we find it fairly easy to control here since the rhizomes are just below the soil surface and easy to pull out where we don’t want it.
Japanese butterbur, Giant butterbur
Petasites japonicus (Japanese butterbur). This species will produce large-leaved foliage that is kidney-shaped. The flowers are small the blooms appear in late winter and very early spring. Grow in full sun or partial shade.
Ground cover, foliage