Designing and planting by habitat is a continental European ecological approach to combining perennials. Consider the gardens of European designer Piet Oudolf and learn about this cutting-edge design concept that has widely influenced European gardens for many years. Robust, low-maintenance plants are selected and grouped according to their ideal growing situation. Robert Herman, an American who managed one of the top European perennial plant nurseries, will explain the habitat concept and design strategy and feature gardens from some of the foremost European designers.