How big do dusty millers get?

Dusty millers, also known as Jacobaea maritima, typically grow to a height of about 12 to 18 inches (30 to 45 cm). They can spread equally wide, often reaching a similar width. Their silvery-gray foliage creates a striking contrast in gardens, making them popular as border plants or in ornamental beds. Proper care can help them thrive in various climates, though they prefer well-drained soil and full sun.