In this exclusive talk, horticulturist Rebecca McMackin will present Piet Oudolf’s layout and installation of the new Calder Gardens project in Philadelphia (opening September 2025), having documented its creation this summer at Piet’s behest.

Discover real insights into the famous designer’s creative process - how he works step by step, why this process is integral to his complex designs, and what gardeners and designers can take from his methods.

Although known for his generosity in openly sharing his designs and philosophy, we usually only see Piet’s gardens when they are established. This is a unique opportunity to see how his planting schemes are planned, constructed, laid out and planted, in an intricate process developed over decades and executed by him and his team, who are all accomplished garden designers in their own right.