Ryan McMahon

Meet the designer of the Seawilding garden in the All About Plants category at RHS Chelsea Flower Show 2025

Ryan McMahon

After graduating in 2006 Ryan worked as a Landscape Architect in a private practice until he moved to Australia in April 2012. He set up MUSA Landscape Architecture and started designing gardens in 2013.

Ryan moved back to the UK in 2020 and designed his first Show Garden in the UK at RHS Hampton Court Garden Festival, this Garden represented Alzheimer’s Research UK and won Bronze. For the Garden Ryan grew the majority of the plants and transported them from Scotland for the Festival.

See Seawilding

Ryan says:  “I’ve long admired the important work Seawilding shares on social media, so when the opportunity came to create a show garden at the RHS Chelsea Flower Show sponsored by Project Giving Back, they were my first choice. As a keen ocean swimmer with a love for our natural environment, I always assumed seagrass grew in warmer climates. But when I learned through Seawilding’s social media that it grows in our coastal seas, I was intrigued. The more I discover about seagrass, the more fascinated I become by its incredible marine ecological role.”

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The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.