Green Concrete, that's grey...

nativecast2

Native Cast

American made environmentally responsible concrete planters.  I was fortunate enough to learn about these beauties at one the of the many craft fairs that San Francisco holds.  (Oh, yes, I <3 SF still.)  The gorgeous nature inspired or sleek design forms are made from a natural and recycled mix.  Read more about the mixture here.  You can even make your own!