Although they date from the time of the WPA, the Cold Frames were not originally intended to be part of the garden. This area was used to grow bedding plants to be planted out in the garden and throughout the park. Each plant was grown in a small terra-cotta pot in the brick cold frames, covered by large glass panes, and eventually transplanted throughout the park. This area is now used as a trial/display area primarily for evaluating new plants for the garden, displaying plants from national seed companies and societies. The Herb Society of America has a display of many varieties of Salvias that do well in New Orleans.