By the mid C18th, Henry Herbert, 10th Earl of Pembroke (1734-1794) had planted various avenues, laid out an informal woodland garden on Temple Hill, and introduced various garden buildings and features in the grounds. During his period of tenure from 1750 to 1794, the tenth Earl built a riding school c 1755, and in 1760s-70s the architect Sir William Chambers was commissioned to design various new buildings in the grounds, including a Casino and a Triumphal Arch. In 1779, the tenth Earl consulted Capability Brown but it is unclear to what extent his recommendations were implemented.
Biodiversity at Wilton
At Wilton the parkland features support a variety of habitats including wood pasture and parkland, deciduous woodland, broadleaved and conifer woodland and wetland habitats associated with the river. Part of the site is the River Avon System Special Site of Scientific Interest (SSSI) one of the most species rich rivers in southern England that supports an abundant and exceptionally rich aquatic flora and invertebrate fauna, birds and fish including water crowfoot, fool’s watercress, kingfishers, little grebe and migratory wild salmon and sea trout.
Follow this link for more information on habitats and species supported by Brown landscapes: www.capabilitybrown.org/biodiversity-and-natural-environment
Follow this link for more information on the River Avon System SSSI: https://necmsi.esdm.co.uk/PDFsForWeb/Citation/2000183.pdf