Silver Knapweed

Overview

Silver Knapweed (Centaurea ragusina) is an evergreen perennial showcasing striking silvery foliage and bright yellow flowers. This drought-tolerant plant reaches up to 2 feet in height and spreads roughly 2-3 feet wide, ideal for xeriscaping and coastal gardens. It thrives in full sun and well-drained soils, providing excellent groundcover and contrast in rockeries or borders. Hardy in zones 7-9, it blooms from late spring to early summer, attracting pollinators.