CITTA DI CASTELLO: Isabella Dalla Ragione hunts in abandoned gardens and orchards for forgotten fruits, preserving Italy’s agricultural heritage and saving varieties which could help farmers withstand the vagaries of a changing climate. The 68-year-old’s collection of apples, pears, cherries, plums, peaches and almonds, grown using methods of old, are more resilient to the climate shifts and extremes seen increasingly frequently in the southern Mediterranean.