Centaurea 'Snowy Owl'

‘Snowy Owl’ is a sun-loving, cushion-forming silver knapweed grown for its pale foliage and late-season yellow flower heads. Terra Nova lists it as an annual *Centaurea ragusina* selection, with an 18-inch foliage height and 16-inch spread ([breeder profile](https://www.terranovanurseries.com/product/centaurea-snowy-owl/)). ## Season and appearance The breeder lists flowering from July through October and describes the plant as well branched, with a compact mound suited to summer borders and containers. Its yellow blooms rise slightly above the foliage. The silver leaves provide a pale, textured contrast in warm-season plantings. ## Placement Plant in full sun and well-drained soil. Terra Nova lists USDA hardiness zones 9–11 and average garden water; in colder areas, use it as a seasonal container or bedding plant. Its compact footprint makes it useful at an edging or near the front of a sunny border. ## Maintenance Keep the root zone from staying wet, especially in containers, and water when the soil begins to dry. Remove spent flower stems as needed to maintain a neat display.