When Joan Carulla Figueres turned the roof terrace of his Barcelona apartment into a garden, it was out of nostalgia for his rural origins. Sixty-five years later, the ecological concepts he has long followed have become commonplace, and he is acclaimed as a pioneer of organic farming.
Carulla, who turned 100 this year, is credited with creating the city’s first roof garden. However, his “allotment in the sky” boasts far more than the usual tomato plants
