Color Guard Adam's Needle is a very ornamental, broadleaf evergreen shrub with a basal rosette of rigid, sword-shaped, spine-tipped rich green leaves featuring a broad, central, brilliant yellow stripe. The leaves are topped in early summer with a dramatic flowering stalk of nodding, bell-shaped, creamy white flowers. This choice adds architectural height to the garden, and the variegated foliage brings a bright note year-round.