The loch is a Site of Special Scientific Interest (SSSI) since 1975 and many interesting plant species, including Greater Bladderwort, Lesser Pond Sedge, Tufted Loosestrife, and the nationally rare Cowbane have been recorded.
John Smith recorded up to six crannogs in Ashgrove Loch, one, on the eastern side, is said to be unique as a crannog in that it was mainly of a stone rather than the usual timber construction with a causeway built of large sandstone blocks [REF].