Rhubarb Starting
Rhubarb Starting (oil on canvas 20x16 in.) In April 2009 I was in the midst of a decade of painting Rhubarb each spring. It was my spring ritual to sit on the ground under the old apple tree and paint en plein air, to the sliding whistles of Starlings and the "check, check, check" scolding of Robins chasing each other. The knobs and ruffles of the shooting Rhubarb have never failed to amaze me - so full of energy that they produce their own heat to keep from freezing at night. The Rhubarb "crown" that remains alive at ground level after the stems have all died back in the fall. The carbohydrate stored there is used for thermogenesis as the shoots begin to grow in early spring. This happens via an "alternative oxidase pathway" form of cellular respiration, which, in stead of efficiently turning all of its ATP (energy) into growth, it "wastes" some of it as heat. After each late snowfall I go out to check the Rhubarb patch to find the spring mi...