Lectures to Oxfordshire Gardens Trust:
- ‘Ditchley Park, from Gibbs to Jellicoe and into the 21st century’, 2009
- ‘Researching historic orangeries’, 2012
The course which ran in April 2009 focused on three Oxfordshire gardens:
Helen ran an extended version of the course, ‘Historic gardens in Oxfordshire: place and power’ in 2010.