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.
Medium-Sized Junipers. Use medium-sized juniper shrubs as foundation plants or to form low or medium-tall hedges. Nick's Compact (Juniperus chinensis Nick's Compact) grows 2 1/2 feet high and spreads to about 6 feet in USDA zones 5 through 9.heir foliage can be dark green, light green, silver-blue or have golden hues. The types of juniper shrubs include low, ground-hugging forms, medium-sized shrubs and large, pyramidal forms. Use low-growing junipers as evergreen ground covers and medium or large shrubs as hedges, screens, windbreaks and specimen plants.