Grass Sculpture In the Garden of Dreams. The sculpture was made by brother and sister team Sue and Pete Hill. There best known works are the series of earth and plant sculptures they made for the Lost Garden of Heligan, Cornwall and for the Eden Project.
red-lipstick: Gigantic century sculpture known as Colosso dell’Appennino, or the Appennine Colossus located in the park of Villa Demidoff (just north of Florence, Italy). It was erected in 1580 by Italian sculptor Giambologna Italy).
Fairy statue in running stream/water garden(Diana's). I'm not a huge fan of statue's in a garden because I like country gardens but if you let it overgrow by some plants or moss it can give an extra dimention.
Giant Living Sculptures at Atlanta Botanical Gardens - My Modern Metropolis "The largest living plant sculpture exhibition ever displayed in the United States! It ended in October Atlanta Botanical Garden Imaginary Worlds, a New Kingdom of Plant Giants.