Early December and very cold and wet: here is a photo of a green oak pergola we’re installing in a new garden on the Isle of Wight. Before too long, it will be festooned with vines and climbing roses; and the ‘big bed’ (the platform at one end enclosed by oak lattice), with canvas mattress and plumped cushions, will be fit for an Ottoman prince. (Designed by Mark Lutyens: made by Carpenter Oak)