Inside a tunnel house, plants are protected from cold and wind, creating a perfect growing climate for more sensitive plants. Photos by Si Williams. : Making the most of your climate

Hoops draped with frost cloth can even out the temperature extremes of hot days and cold nights and extend the growing season into winter, even in frosty Central Otago. : Making the most of your climate

A house has huge thermal mass so next to it can be a warm and sheltered place for plants to grow. : Making the most of your climate