Olcott Arboretum
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The Olcott Arboretum is a botanical collection of trees located on the headquarters campus of the Theosophical Society in America in Wheaton, Illinois. The campus has long been called "Olcott" after a founder of the Theosophical Society, Henry Steel Olcott.
Establishment of the arboretum
History of trees on the Olcott campus
When the Theosophical Society purchased land in Wheaton early in 1925, the first action taken on the bare plowed fields was a plant a grove of trees. The first tree planted, on May 6, 1925, was a silver linden.
Silver linden, May 6, 1925 
Grove on May 8, 1926 
Grove and Rogers Building in 1931
