Southwood Open Space is a 12.9 hectare Local Nature Reserve (LNR) and Hogsmill Valley is designated a Site of Borough Importance for Nature Conservation, Grade 1 and these were mainly dominated by elm trees until they were destroyed by Dutch Elm Disease.
Southwood Open Space is a 12.9 hectare Local Nature Reserve (LNR) in Old Malden in the Royal Borough of Kingston upon Thames in London. Hogsmill Valley is designated a Site of Borough Importance for Nature Conservation, Grade 1. These were mainly dominated by elm trees until they were destroyed by Dutch Elm Disease. 
