Xeriscaping . . .

Xeriscaping is water- sensible gardening that uses plants with minimal water requirements . . . . eliminates lawns in exchange for mulches  (which can include gravels) . . . .
This is a MOVEMENT that began in 1980 in Denver.  It is an awareness of limited resources and sustainability.
Sustainability = Responsibility
Drought conditions exist all around of the World.
Do whatever you can to help.
We can all do something.