Among all the many reasons I would love to live in Italy is the presence, on the grounds of some old villas, of limonaie. These are lovely structures, usually made of brick, with arched doorways through which enormous terra cotta pots of citrus trees are wheeled in and out during the cold season. Inside the limonaie the air is kept warm enough for the tender trees to survive the usually mild Tuscan winter; outside the sun is strong enough even in winter to keep the trees happy on the warm days when they can be wheeled outside. The doors themselves are wooden, and when all are opened, the limonaia with its tiled roof looks like a small temple. As I was drawing these satsumas with their summery green leaves today, I thought of the limonaia in the beautiful courtyard of my friends' house in the tiny village in Tuscany where I was lucky enough to spend two summers a few years ago.