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.
Types of Arborvitae Shrubs. Don't try eeny, meeny, miney, moe when it comes to picking arborvitae shrubs for your garden, or you may end up with a wall of dense, green foliage blocking your ocean view. These conifers in the cypress family come in sizes ranging from dwarf to giant. All offer gorgeous needles in delicate snowflake patterns.