The inner garden dates from the 13th century and is believed to be part of the castle development. In the 18th century the gardens were restored and then redeveloped by Denbighshire County Council, to reveal its historic plan. Borders along the sides of the garden contain plants selected to represent a 17th century planting scheme and include crown imperials, old roses and lilies.
The brick and stone little summer house is an attractive addition to the garden. There is another similar one in an adjoining property which was used as accommodation for a groom. The intended use of the one in the gardens at Nantclwud y Dre is not clear. It has extensive views from the upper terrace and may have provided a place for the family to take tea and entertain guests.
The lower part of the garden is set out as a wild flower meadow providing sustenance for insects. This is part of the sustainability programme currently underway at Nanctclwyd y Dre under the watchful eye of our current manager who also promotes nature days in the garden and is in the process of developing butterfly conservation work with a member of ‘The Friends’.