Speech House Oaks (grid reference SO622123) is a 16.26-hectare (40.2-acre) biological Site of Special Scientific Interest in Gloucestershire, notified in 1972.

[1][4] The planting and careful management of the vast woodland of the Forest of Dean has been carried out for hundreds of years.

The soils in the surroundings are richer, and support a variety of tree types and a more abundant ground flora.

There is considered to be a low level of atmospheric pollution in this area, and, together with the ancient trees, this has encouraged a significant diversity of ephyitic flora (numbers are recorded and particular species listed).

[6] Old trees develop holes where they shed branches, and these are recorded nesting sites for particular birds such as the common redstart.