Geograph - photograph every grid square

Designed in 1906 by Thomas Mawson, often described as "the leading landscape architect of the Edwardian era", for the then owner of Dyffryn House, John Cory, and his son Reginald, a keen horticulturalist and plant collector.
Some areas of the gardens are currently (2015) being restored to their 1920's splendour using watercolours painted by Edith Adie.
It is Grade I listed as being "The grandest and most outstanding Edwardian gardens in Wales.”
Owned by the Vale of Glamorgan council, but maintained by the National Trust since January 2013.