- Wentworth Castle and the Battle of the Buildings, 14 March 2013, episode 4, Baroque in Britain, BBC Radio 4, Patrick Eyres and Tim Marlow (see photograph at Wentworth Castle Gardens).
- Ian Hamilton Finlay and Little Sparta, 15 October 2011, Garden Marathon. Recording by the Serpentine Gallery, London.
- The Asiento and The Blackamoor garden statue, 21 June 2013, keynote paper, Colonial Legacies Conference, University of Utrecht. Recording by the University’s Centre for the Humanities.
- Humphry Repton and the War Profiteers, 5 November 2018, Discovering the Real Repton Symposium, The Gardens Trust and Garden Museum, London. Recording by the Garden Museum.
- Little Sparta, an Unforgettable Gardens, 10 February 2021. This recording by the Gardens Trust is accessible via the Little Sparta Trust website.
- The Rival Wentworths: Georgian Mansions, Monuments and Landscapes, 14 April 2022. Recording by the Wentworth Woodhouse Preservation Trust.
- ‘Ian Hamilton Finlay and the Cultural Politics of Neoclassical Gardening’, Garden History, 28/1 (2000), pp. 152-66.
- Response to ‘Ian Hamilton Finlay and the cultural politics of neoclassical gardening’, Garden History, vol. 50, Suppl. 1 (2022), pp. 181-191.
Lectures: Lockdown and Beyond
- Wentworth Castle and Wentworth Woodhouse: Georgian rivals united through 21st-century restoration and public access, for The Gardens Trust / London Gardens Trust (Zoom, 2020) the Friends of The Botanical Garden Sheffield (Zoom, 2021) and the York Friends of the National Trust (Zoom, 2021).
- Learning from The Blackamoor, for The Gardens Trust (Zoom, 2021). See David Marsh’s blog about this lecture series ‘Other Voices in Garden History’. See also NAJ 69/70, The Blackamoor.
- The Political Use of Sculpture in Georgian Gardens, for the Sussex Gardens Trust (Zoom, 2021).
- Georgian Gardens: Where did the money come from? for The Gardens Trust (Zoom, 2021).
- From Naumachia to ‘Naval Warfare’: Nautical Frolics in British Parks, for The Gardens Trust and Yorkshire Gardens Trust (Zoom 2023). See NAJ 39/40, Naumachia.
- The Maritime Garden, for the Leeds Art Fund at Leeds Art Gallery (2023), marking the 40th anniversary of the New Arcadian Journal: Little Sparta, Peasholm Park and the Stone Garden. See NAJ 77/78, Atlantic Flowers.