From Horsepower: "The self-nourishing interrelationship of earth, plants and animals has been central to vigneron Christophe Baron’s farming philosophy ever since he pioneered biodynamic farming in the Walla Walla Valley in 2002.
Like Cayuse Vineyards, Horsepower is farmed according to an astrological sowing and planting calendar, and entirely without the use of herbicides, synthetic fertilizers, chemical insecticides or fungicides.
Two draft horses, Red and Zeppo, cultivate vineyards ranging from 3,555 to 4,840 vines per acre with as little as 3' x 3' spacing—planted 1 vine per stake, or 'sur echalas' in French."