The churchyard is a consecrated burial ground which was laid out in 1845-6 with a brick wall around it. It contains many interesting graves and monuments, particularly those of Crosse and Blackwell (of baked bean fame) and a former Lord Mayor of London.
The long path from the lychgate to the church door is bordered by pollarded lime trees, while the path to the rear of the church is an avenue of horse chestnuts. There is an ancient yew tree near the road.

The whole area is managed to maintain bio-diversity. The grass is not cut until July to allow wild flowers to set their seed. The churchyard is particularly attractive in the spring when primroses, violets, celandine and anemones abound. For more information about the flora please contact the churchyard warden, Jill Lewis.

All of the memorial inscriptions (including those in the New Cemetery across the road, which opened in 1884) have been recorded by the Central Middlesex Family History Society. Copies of the complete list are in the Local History Collection at the Civic Centre Library in Harrow, and in the Greater London Record Office.
Visit this page: Bentley old Vicarage Nature Reserve