Reeds grow from a tub outside the steel structure. “We capture the graywater from the sink and shower, and use it to water the plants in the garden,” says Hill.  Photo 8 of 17 in Smaller in Texas

Smaller in Texas

8 of 17

Reeds grow from a tub outside the steel structure. "We capture the graywater from the sink and shower, and use it to water the plants in the garden," says Hill.