Abstract: An aeroponic system for propagating plants and/or seeds includes a chamber, a cooling system and a liquid delivery system. The cooling system is coupled to the chamber which includes a top portion for supporting plants and/or seeds. The top portion may include orifices to which holders may be connected. The holders can be configured to support a plant so that the roots of the plant are located within the chamber and the remainder of the plant is located outside the chamber. In addition, the chamber contains a liquid, which may include a nutrient solution. The liquid is delivered to the plants and/or seeds by the liquid delivery system and maintained within a liquid temperature range by the cooling system. The system may be adapted to propagate different types of seeds and plants.