The rustic artistry of wrought iron plant hangers is a great way to express your style and add that extra touch of class to your hanging foliage. Most wrought iron plant hangers have an artful arch which attaches to either a wall or to a post and is used to suspend hanging baskets or pots filled with lush leaves or heavy blooms. But some wrought iron plant hangers are simpler, designed with an understated iron clamp to display clay pots creatively indoors or outside on fences.