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.
Incorporate different types of evergreens into your landscape. Evergreen trees and plants provide year-round color and texture to your home landscape. Plant different types of evergreen trees and plants throughout your landscape to create a smooth transition across the entire property between seasonal gardening. Use evergreen trees to shade your home during the summer and block cold winds through the winter.