Starstruck Blue Star features showy clusters of sky blue star-shaped flowers at the ends of the stems from late spring to early summer. The flowers are excellent for cutting. Its attractive textured pointy leaves emerge olive green in spring, turning green in color with pointy buttery yellow spines. As an added bonus, the foliage turns a gorgeous harvest gold in the fall. The olive green stems are very colorful and add to the overall interest of the plant.