the seven principles

Overview- what is Xeriscape™ ?
Here is a quotation from the inventor, the Colorado Waterwise Council:
"What is Xeriscape? This question confuses many people who expect Xeriscape to be a specific look or specific group of plants. Xeriscape is actually a combination of seven common-sense gardening principles that save water while creating a lush and colorful landscape. These principles are:

Plan and Design
Create Practical Turf Areas
Select and Group Plants Appropriately
Improve the Soil
Mulch
Irrigate Efficiently
Maintain the Landscape