Living in Chicago, a city with plenty of parks that are your only natural retreat year-round, you become aware of not only how beautiful they can look in the warm seasons, but also how well, or poorly, they age in the winter. Piet Oudolf is a Dutch garden designer who has done some work in Chicago's Millennium park, and is known his attention to how a garden both lives and dies. Here's a slideshow.

It also caught my attention that the hedges look like sine waves. Always an attractive form.