Flanking the main entrance to the Minneapolis Sculpture Garden is Ampersand, a sculpture by Martin Puryear made with two 14-foot granite columns. The artist sculpted the columns from a single rectangular block of granite that he split in two. Then he used a machine lathe–similar to a giant pencil sharpener–to shape each piece into its final form. The artist intentionally left a portion of the column “unfinished” to emphasize the texture and natural quality of the stone. Like the Garden, which is symmetrical and balanced in its layout, the columns are nearly identical. However, Puryear varies the symmetry of the columns by installing them in opposite directions–one on its cylindrical end, the other on its square base. By doing this, the artist calls attention to the smooth, polished, round shape of one column and the rough texture and massive rectangular shape of the other column.

Martin Puryear was commissioned to make a new work for the Minneapolis Sculpture Garden before the design of the Garden was finalized. An artist who has always maintained a high level of craftsmanship in his work while addressing the relationship between nature and culture, Puryear originally suggested a stone arch. This inspired the Walker curators to site the sculpture at the entrance to the Garden. After studying the models and plans from architect Edward Larrabee Barnes, Puryear relinquished the arch idea (feeling it would obscure the view of Spoonbridge and Cherry) and suggested that something more akin to gateposts, designed for a plaza with seating, would better suit the chosen site.