2018 saw the release of ‘Five Seasons’ the documentary movie created by filmmaker Thomas Piper celebrating the life and work of Piet Oudolf. Dutch born Oudolf is credited as being the originator of the Dutch ‘New Wave’ perennial movement which he started in the 1980’s. That movement is centred around the themes of using native North American grasses and prairie plants in a structured but naturalistic manner to achieve broad swathes of colour, texture and movement in urban spaces.