A method for storing harvested photosynthetic active horticultural produce includes, between harvesting and consumption of the harvested photosynthetic active horticultural produce, exposing the harvested photosynthetic active horticultural produce to green light and/or to blue-green light. A device for storing harvested photosynthetic active horticultural produce includes a casing defining an interior volume, and a cooling mechanism for cooling the interior volume. At least a first LED is supported by the casing. The first LED is configured to emit green light to the interior volume, or is configured to emit blue-green light to the interior volume.
