Greenfield Farm in the Chilterns Area of Outstanding Natural Beauty includes around 130ha of actively managed Chiltern beech woods, part of which is an ancient woodland Site of Special Scientific Interest, designated for its diversity of unusual plants and invertebrates. The species-rich chalk grasslands, which have been created in previously arable fields, are thought to be some of the most diverse manmade wildflower meadows in the country. Under the Countryside Stewardship and Environmental Stewardship Schemes, new hedges have been planted and wildflower margins established around all of the arable fields. Several arable fields have been reverted to species-rich chalk grassland, to create a significant area of this Biodiversity Action Plan priority habitat. New woodlands have been created. All of these conservation projects combine to create a very species-rich environment.