Large garden planters for patios - Circular metal planter pots from Garden Requisites. - My Garden Muse
Square Garden Planters – Set of 2 by Iron and Dibble on Scoutmob Shoppe. Repurposed steel planters, perfect for a little group of succulents or herbs.
Vertical Garden wall of terra cotta pots Larritt-Evans. I'm thinking that the copper structure may be rigged to drip water onto the pots below.