Along with the growth of workplaces that take sustainability seriously, in offices everywhere nature is increasingly making its presence felt. Plant-studded living walls might have once seemed a fleeting fad, but they’ve put down roots as a perennially covetable feature. Nature is also invading the offices of bluechip companies in the form of spectacular jungle-like internal gardens and courtyards or roof terraces, which offer employees luxuriantly planted outdoor rooms that dissolve the traditional boundary between indoors and out.