I wasn't sure I would like black planter boxes in my backyard.  I have black wrought iron furniture and love lots of color in my yard.  I ordered one black square pot planter made by Mayne Co. to see if I liked the look and color. It is a commercial grade polyethylene container, sub-irrigation system and clean contemporary look.  Their Customer Support was friendly and helpful in answering my questions. 
I liked the planter box so much, I ordered two more.  I love the way my red geraniums pop with color in the black boxes.  Great look, great product.  I would highly recommend Mayne products!


Pros: Arrives assembled and ready for planting.  Superb quality and design.
Cons: Wish they had a 24" X 24" planter box size.