...in Syon Park, Brentford, London
The impressive Great Conservatory in Syon Park has no citrus plants, but in the park itself I found one mature Poncirus trifoliata specimen.
Taken 20th March 2016, flower buds at this stage were still tightly closed.
The red dot indicates the Poncirus in relation to the lake and Great Conservatory.
page created 23rd March 2016