While Nils-Udo’s works from the ’70s included tree-branch constructions and delicate arrangements of flowers, leaves, moss, and snow in the form of nests, curves, lines, and spirals, more recently he has focused on massive installations that thematize ecological concerns. In 1994, to commemorate the 500th anniversary of the introduction of corn into Europe, Nils-Udo created a living spiral comprising various corn species at the Château du Laàs in the Pyrenees. At the center of the spiral was an octagonal tower topped with original, non-hybrid species of Mayan corn, while sheaves of corn trailed