The invention relates to a pergola system 1. A watering and draining system is constructed in the supporting posts 3 and roof girders 6 of this pergola system 1. The roof girders 6 bear planting boxes 9 which are watered and drained by this system. The plants cultivated in these planting boxes can grow downwards from a safe height. Damage to the root or stem region of the plant, which is possible on the ground, is no longer possible at this height. In the case of this pergola system 1, the plants can grow downwards without special trellises being required in order to form walls about which the plants can entwine themselves. <IMAGE>
