Landscape designer Andrew D'Arezzo and his team at EcoSense devised a passive rainwater harvesting design using bio-gravel, “a proprietary mix that mimics a natural stream overflow."  Photo 6 of 7 in How to Kill Your Lawn and Help the Planet

How to Kill Your Lawn and Help the Planet

6 of 7

Landscape designer Andrew D'Arezzo and his team at EcoSense devised a passive rainwater harvesting design using bio-gravel, "a proprietary mix that mimics a natural stream overflow."