Lecture by Timothy Walker: The Harcourt Arboretum – One of Oxfordshire's brightest botanical jewels. Friday 9th March 2018

Lecture by Timothy Walker who worked at the University of Oxford Botanic Garden & Harcourt Arboretum from 1986 until 2014, latterly as Director (from 2002). He recounts the 180-year history of Harcourt Arboretum, annexed to the University of Oxford Botanic Garden in 1963, from its beginnings in 1835 when the Harcourt family started to collect conifers from North America to the present day.

Lecture by Michael Brown: Poisonous Plants, Myths, Magic, Passion and Murder. Friday 20th April 2018

Lecture by Michael Brown. Michael has an MA in Garden History and is an ex Head Gardener and College Lecturer in horticulture, with a passionate interest in garden history and how gardens were created and maintained.

Visit to the former Morrell Estate, Oxford. Saturday 28th April 2018

2−5pm. Peter Edwards, OGT committee member and local resident, leads a walking tour of the Morrell Estate landscape, now occupied by Oxford Brookes, Cheney School, Headington Hill Park, South Park and Morrell Avenue. £5 members, £10 non-members. Maximum 20. 

Visit to Oare House and Gardens, near Pewsey, Wilts, SN8 4JQ. Friday 11th May 2018

11am. A tour of the gardens of Oare House (not open) by the Head gardener and curator. Set out by Clough Williams Ellis in the 1920s, the gardens include a kitchen garden, Magnolia garden, mixed borders, park and arboretum, as well as a spectacular garden pavilion by celebrated architect I.M. Pei. £5 members, £10 non-members including tea/coffee. 

AGM and visit to Waterperry Gardens, nr. Wheatley, OX33 1LA. Saturday 9th June 2018

10am AGM (no charge). 11am coffee/tea, followed by a talk on the house and its garden from Simon Buchanan, Steward, and on the restoration of the ice-house by Steve Pegrum; self-guided tour of the garden; 2.15pm guided tour of house. Nearby church and museum and walk to Waterstock Mill. Talks and tour inc. tea/coffee: £15 OGT members, £10 Waterperry members, £20 non-members, Max. no. 30; Lunch £10 extra, must be booked in advance.

Visit to Thame Park, Thame Park Road, Thame, OX9 3PU. Friday 22nd June 2018

6pm. A rare opportunity to visit the beautifully restored gardens of this  former Cistercian monastery, which incorporates a medieval deer park with veteran oak trees within the Old Park; ‘Capability’ Brown-landscaped gardens with 19th century improvements. £11 members, £16 non-members. Maximum number 28.

Visit to Adwell, between Thame and Watlington, OX9 7DQ. Thursday 5th July 2018

2pm. Colin Roberts, Head Gardener, leads us on a tour of the gardens, developed by the Birch-Reynardson family from the 19th century onwards, including herbaceous borders, lakes, a walled garden, and a parish church in the grounds; David Bradley will talk about the water features. £11 members, £16 non-members including tea/coffee. 

Lecture by Oliver Cox: Oxford University's work with heritage. Friday 7th September 2018

Lecture by Dr Oliver Cox, of The Oxford Research Centre in the Humanities (TORCH). He will speak about Oxford University’s work with heritage − Heritage and Innovation in Oxfordshire, examples of recent projects with the National Trust, and future plans.

Lecture by Jane Bradney: Repton's Legacy – The Red Books. Friday 19th October 2018

Lecture by Jane Bradney, an independent garden historian and lecturer with a special interest in Humphry Repton and the Regency. She will talk about the pervading influence of the Red Books.

Lecture by Trevor Rowley: Forest Parks and Woodland in early medieval England and Normandy. Friday 16th November 2018

Lecture by Trevor Rowley, landscape historian and archaeologist, Emeritus Fellow of Kellogg College, and author of the classic Villages in the Landscape and The Landscape of the Welsh Marches. He will reveal the history of English landscapes and their associations with Normandy.

Lecture by Margaret Willes: Parmesan and Parsley – Samuel Pepys, John Evelyn and Gardens. Friday 7th December 2018

Lecture by Margaret Willes, historian and writer and former publisher at The National Trust. She will talk about these two great diarists of Restoration England and their intense curiosity in what Evelyn called ‘hortulan affairs’, subject of her recent book 'The Curious World of Samuel Pepys and John Evelyn' (Yale UP, 2017).