Black "Supreme" Fiberglass Window Boxes

The "Supreme Flowerbox" window box is made of high strength maintenance-free fiberglass. "Supreme Flowerbox" window boxes are lightweight and easy to install. These three-ply fiberglass shells won’t rot, stain, bleach, freeze, or become disjointed. Each Supreme Flowerbox window box includes a custom drainage mat designed to channel water over the convex bottom to drainage holes located in the end-cap. The Supreme Flowerbox drainage mat replaces pebbles, prevents over-watering and circulates air and heat to plant roots to encouraging faster growth and healthier plants. Enjoy the understated elegance of the Supreme Flowerboxes window boxes classic white finish or brush on a bold splash of your own color.

If you prefer the charm of a hand crafted window box please take a look at the hand crafted "La Fleur" Fiberglass Window Boxes and the "Del Sol" Fiberglass Window Boxes.