Yes, you got it right. These sculptures really grow. The fascinating sculptures named as Terraform Sculptures by Robert Cannon will liven up your backyard or garden with their visually pleasing appeal. The sculptures are simply made of concrete and moss. The sculptures look as if they are growing in size and just imagine when the moss will cover the sculptures. How whimsical the scene would be? Original and pleasing to the eyes, they bring a unique touch to any garden, patio or backyard.