Most of his water features use slabs of limestone stacked up to recreate the natural river systems of the Mid West. Much of his designs focused around views from certain places where he would leave openings in the dense under stories he was known for planting.
Jens never created paths going in straight lines to their destinations; he disliked inorganic lines that connected places like they were nodes. He said of the vast formal gardens of France that "men with little intellect and plenty of money who, for the sake of popularity, will turn their gardens into museums of freaks where even the stalwart moonshiner would hesitate to pass through at the midnight hour."
Today his gardens are being restored due to resurrections of his plans. Jens Jensen was one of the most influential designers to popularise native gardens. He showed that not only could beautiful gardens have native species, but could have native species in their respective places as they would be without human integration or involvement.
He taught us that beauty does not have to come from a Tulip from Holland or a Maple from Japan; it can come from the wild reaches of our backyards or state parks. He summed up his philosophy by saying: 'Every Plant has fitness and must be placed in its proper surroundings so as to bring out its full beauty. Therein lies the art of landscaping'."
Thanks to Wikepedia; More about Jensen
Website about Jensen, his parks in Chicago, and his designs.
