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.
Plant evergreen ornamental varieties for year-round specimen plants. Grasses include blue oat grass (Helictotrichon sempervirens) and tall blue fescue (Festuca amethystine). Blue oat grass is a semi-evergreen fountain grass. It grows well in zones 4 through 9 and needs dry, well-drained soil.
Evergreen magnolias produce large, creamy white blooms. The Southern magnolia (Magnolia grandiflora) is a large tree that grows 20 to 80 feet in height. The smaller version is âLittle Gem,â which reaches heights of 20 to 25 feet.ach of these evergreen magnolia trees are grown in full sun to partial shade in Sunsetâs Climate Zones 4 to 12 and 14 through 24. Evergreen magnolia trees retain their leaves throughout the winter. A frost can damage the remaining leaves and kill foliage and limbs if the temperatures are unusually cold.