Peter is a:
-Fellow & Chartered Member of the Chartered Institute of Horticulture
-Fellow of the Arboricultural Association
-Chartered Member of the Institute of Chartered Foresters
-Chartered Member of the Society for the Environment
-Lecturer and Examiner at The Royal Botanic Gardens, Kew [School of Horticulture]
-Lecturer and Tutor at The London College of Garden Design [based at RBG Kew].