I have just returned from a trip to Michigan! One of my favorite adventures was the Frederik Meijer Gardens and Sculpture Park. The Park has a new living installation created by David Nash from Kew Gardens, England with a documentary film explaining his process. The trees were installed during the winter; planted at an angle and staked to create interesting curves as they grow.
Gardens and sculpture galleries cover 132 acres, designed by renowned landscape artists. The galleries include the Sculpture Park, Children’s Garden with a large treehouse, a Michigan Farm Garden, and a Piazza with a 24 foot bronze horse inspired by da Vinci.
I have shared additional images and commentary here: http://skjonesart.com/blog/.