The former Merrist Wood College student (1976/77 NCH) now runs his own garden design company - Roddy Llewellyn's Garden Design.
He has lectured on gardening at Dobbies and Burford garden centres, Hereford Cathedral, Malvern Spring Gardening Show (on the topic Who are better Gardeners - Men or Women?), Cotswold Wildlife Park and Cholmondeley Castle.
Llewellyn has written seven gardening books and articles for many magazines as well as appearing on Sky TV. He also designed silver-gilt-winning gardens for Chelsea and Hampton Court in 1988.