In Colorado it’s cold for much of the year, but inside this cozy dome greenhouse, the plants are growing happily. Take a grand tour with Buckhorn Gardens manager and permaculturist Breigh Peterson: the greenhouse structure with its interplay of light and water, warmth and air; curving raised beds of vegetables and flowers; fish tanks moderating the temperature; vertical trellises and shelves to use vertical space. Outdoors a huge garden of row crops and a young orchard are complemented by free-roaming chickens and ducks. (buckhorngardens.blogspot.com) Produced April 30, 2009. Episode 147.