Related Terms. 1  operating system virtualization. 2  mobile operating system (OS). 3  OS-operating system. 4  server operating system. 5  system. 6  Microsoft Windows XP operating system. 7  Linux OS (Operating System). 8  paravirtualized operating system. 9  NOS-network operating system. 10  Chrome OS.
Prune and shape evergreen shrubs to provide year-round hedges, ground covers and privacy screens in your yard. The scarlet firethorn (Pyracantha coccinea) and Chinese holly (Ilex cornuta) shrubs produce red-colored berries and dark-green leaves.
Eucalyptus. This fast-growing evergreen tree can be planted in a large space as a stand-alone specimen or kept to smaller proportions using pruning methods such as coppicing or pollarding. The foliage is often used in flower arranging.ucalyptus gunnii AGM: A large evergreen tree with peeling cream and brown bark. The juvenile foliage is bright glaucous-blue and rounded; but the adult leaves elliptic or sickle-shaped and grey-green. Flowers white, in small clusters. Height 25m (80ft).