Gary will introduce participants to the history of the estate, particularly focusing on the work of expert horticulturalist George Johnstone, who inherited the Cornish manor and its 30 acres of gardens in 1904.

"George Johnstone's legacy lies with his involvement in sponsoring plant-hunting expeditions in far-flung countries such as China and successfully cultivating the exotic species that were sent back to Cornwall," said Gary. "My talk will highlight his work in the making of the garden here at Trewithen, as recorded in his journal, as well as my experiences of visiting China recently."

Gary's walk will follow with a guided tour of the gardens – looking in particular at the Champion Trees and the Rose Garden.

Light refreshments will be served 15 minutes before Gary's walk and talk which will start at 1.30pm. The talk will last 1 hour and the walk will take 1.5 hours. Guests are invited to remain in the gardens after the tours have ended and the café will be open for further refreshments.

Tickets cost £12 per person and group discounts are offered. For further information, visit or call 01726 883794.

Ends 01 June 2012

Media enquiries: Sue Bradbury PR Tel: 01872 863863