Height: 3′-4′ Spread: 5′-8′. Slender, erect, evergreen blue stems on this low-growing shrub are leafless, creating a striking and unusual accent in the landscape. Though the bloom is insignificant, the female plants produce bright red berries in midsummer that glow against the blue foliage. Ephedra is the oldest known cultivated medicinal herb, also known as Ma Huang, and is used by the Chinese for many ailments. Native to Russia and North Asia. Plant Select® 2004. Zone 5.