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60in. Slate Grey Supreme Fiberglass Window Box

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Grow grand container gardens without maintenance hassles using the Slate Grey Supreme Fiberglass Flower Box. Measuring 60" L, this long window planter is great for high-impact displays on the front of a home. Each container is high-strength but lightweight when compared to wooden window boxes of a similar size. And fiberglass runs no risk of rotting or molding, while boasting resistance to any climate extreme be it hot or cold.

The Supreme Fiberglass Window Boxes come with a system for drainage that matches the ordered size. A smart mat insert replaces the need for a layer of pebbles, and easily channels water through the convex container bottom and out the sides. Drainage mats also encourage healthy airflow while eradicating root rot for floral arrangements that flourish more and last longer.

Smooth finishing inside and out makes garden containers easy to rinse off as desired, although no maintenance is required. Fiberglass planters online also come with four standard wall brackets and bolts; additional hardware required for brick, fence or railing mounts. Supreme Fiberglass Planters are also available in custom sizes up to 14' in length; please call toll free for details and pricing.

24" L x 8 1/2" W x 9" H -Includes (2) Brackets 

Fiberglass Window Box Dark Green Dimensions Hooks and Lattice 

If you'd like a more decorative look to your windows, consider these wrought iron window box brackets below.  Simply locate our different styles on the right side of this page and click to review or add to your shopping cart.Using these shelf-like brackets allows your box to be mounted further from the wall frequently allowing clearance from window trims and other trim boards.
Wroght Iron Window and Flower Box Mounting Hardware
  • French Shelf Bracket Pair- creates a 8 1/4" Shelf

  • Scroll Shelf Bracket Pair - creates a 8 1/4" Shelf

  • French Shelf Bracket- creates a 11 1/4" Shelf
Finish: Powder Coated in Textured Black
Our line of Supreme Fiberglass Window Boxes come with wall brackets to hang your window box beneath a window on your home. Bolts are included, but if you are mounting the box to a stone/brick home, you will need to purchase lag shields separately. Diagrams are shown below so that you can see how the boxes are mounted to a wall and to a railing. To explore additional mounting hardware, including brackets for hanging the box from a railing, visit our Optional Brackets (For Fiberglass Supreme Boxes Only) page.

Fiberglass Window Box Installation from Hooks and Lattice