Flowers, Flowers and more Flowers! The Tru-Post® fence and deck planter is our personal favorite among landscapers and garden enthusiasts. From colorful annual flowers to fall decor and winter greens, this is the perfect all year round decorative post cap accessory. Our planter basket is a powder coated steel basket with a powder coated aluminum stem. Our current model is a 12” coco liner basket, which is used to plant flowers of your choice to cascade over the fence or deck post. Coco liner included.TRU-POST ™ Fence and Deck Planter Baskets are designed to fit:Standard 2″ x 2″ Aluminum fence or railing posts. Standard 2.5″ x 2.5″ Aluminum fence or railing posts. Standard 4” Vinyl fence or railing posts. Standard 4.5″ Trex Transcend railing post, Or any flat wood or deck surface with our universal wood mount.