A new type of porous concrete supports the growth of plants, including vegetable crops, and could make cities greener. Credit: piranka/Getty Images A new type of porous concrete that provides ...

Slipform pavers do not use forms when pouring ... And since pervious is a porous concrete, the top 1 to 11/2 inches are critical when it comes to proper curing, Fisher says.

Here, the designer introduced a grid of concrete squares in a textured finish. When using urbanite or natural flagstone, add some ground covers in between the pavers for a soft, dreamy look.