Patent ID: 8776433

Claim:
A planting tower, comprising: a plurality of planting columns arranged around a center line parallel to the gravity direction and leaning against each other, each of the planting columns comprising a plurality of planting containers three-dimensionally stacked on each other with the same structure, wherein each of the planting containers comprises: a bottom wall; and a side wall extending from the peripheral edge of the bottom wall and defining a containing space with the bottom wall, the side wall having a planting opening communicating with the containing space, wherein the side wall has a top end and a bottom end, the bottom end is closer to the bottom wall than the top end, and when two of the planting containers with the same structure are three-dimensionally stacked on each other, the bottom end of the upper planting container engages with the top end of the lower planting container, wherein the side wall laterally tilts towards the center line relative to the bottom wall, so that each of the planting columns tilts towards an adjacent planting column and tilts towards the center line.