High Quality Content by WIKIPEDIA articles! Thomas Guy Hart Dyke (born April 12,1976) is an English horticulturist and plant hunter. He is the son and heir of Guy and Sarah Hart Dyke at the family seat of Lullingstone Castle, Eynsford, Kent. He is the designer of the World Garden of Plants located on the property. The World Garden contains over 10,000 species of plants, many collected by Hart Dyke from their native environments.