Snow in Summer ‘Yo-Yo (tomentosum)’

Snow in Summer ‘Yo-Yo’ is a low-growing perennial groundcover that excels in full to part sun and well-drained soil. Woolly gray foliage forms a dense mat only 4 to 6 inches tall, covered in late spring with pure white star-shaped flowers. Portland gardeners find it ideal for rock gardens, slopes, and edging where its spreading habit fills in beautifully. This drought-tolerant plant thrives in poor, gravelly soils and cascades attractively over walls and edges.