I'm perhaps best known for my collaboration with the famous planting designer Piet Oudolf. My expertise is bulbous plants, experimenting in my own garden, the Theetuin (“tea garden”), which was established at Weesp near Amsterdam some 30 years ago. I source plants in New Zealand, Australia, Japan, South Africa, China, the United States, Oman and “most Western European countries,” observing plant communities in the wild with a view to replicating them at home as part of my naturalistic designs. A late starter, I “fell into plants” at the age of 28, soon after qualifying as a garden designer I travelled to China and was amazed to see the likes of Nandina domestica (the heavenly bamboo) and also the camphor tree, Cinnamomum camphora, growing both wild and as a street tree. I have been to the USA and China many times, but nothing inspires me as much as the spring mountain meadows, which always blow me away. It has something to do with the 'natural style’ that I love so much. My first love was perennials. It gave me so much joy discovering which ones would be suitable for the different parts of the garden, which is mainly on clay soil, so quite moist, but with some drier areas. But then after six or seven years I discovered’ spring-flowering bulbs and the possibility of mixing them with other plantings. In the past few years annuals and summer-flowering bulbs have become favourites. I find those four groups of plants so inspiring and I like to test all kinds of combinations. I'm excited to be able to reach out to you wherever you are in the world, and share my knowledge and passion through these online horticulture and garden design courses at Learning with Experts. Piet Oudolf and I continue to collaborate on bulb plantings all over the world and update our work here accordingly. I look forward to seeing you in the classroom.