You can book a tour at Trenarth.
Trenarth is an old granite grade 2 listed farmhouse, with a central 17th century courtyard and garden, listed garden walls, all surrounded by about 3 acres of varied garden. The house stands in a totally rural situation, south facing with not a road in sight, and wide views overlooking its land and woods.
The planting has been done over 25 years, and continues to be augmented, with an eye for unusual and tender plants on the walls and in the protected yew “rooms”, as well as variety of foliage, bark, berries, colour and flowers. There is a wide range of areas, including a vegetable garden, old fashioned potting shed, large orchard, areas for children to explore, gravel and palm areas, shrubberies, herbaceous beds, and woodland planting, all also with an emphasis on supporting wildlife, including a colony of rare bats. There is a medieval green lane leading from the farm, down past an animal pond, through bluebell woods to Trenarth Bridge on the Helford.
There is parking, toilets and refreshments on request at booking, unfortunately this garden is not wheelchair accessible.