Pearson was at the South Bank's Oasis Academy yesterday leading a planting design class for young people involved in the Garden Bridge Trust's Youth Board.
The board involves four schools from Lambeth and Westminster. Its purpose is to further students' education in horticulture, design and engineering and to help with career opportunities.
The workshop comprised an interactive planting and horticultural class from Pearson, after which students designed their own garden using the plants which will feature on the bridge. Plants were supplied by Willerby Landscapes.
Pearson said: "It's fantastic to be involved with the trust on a programme that is helping students from the area get excited about the natural environment whilst enhancing career prospects. We are very excited to develop this programme further."
He explained: "When the bridge opens we will have planting classes on the bridge. This will give local residents and visitors the opportunity to learn about horticulture and the importance of natural environment in the city, especially as this area has limited green space."
Sally Scantlebury, farm manager at Oasis Farm Waterloo where the workshop was held, said: "It was a joy to see the explosion of creativity as Dan Pearson engaged with the students. They loved the opportunity to learn more about horticulture, design and landscaping. We are so excited to be working with the Garden Bridge Trust and we look forward to building on opportunities using the farm in the future."