The utility model relates to a combined planting device, which is arranged on a building, comprises a track unit and a plurality of planting units.The track unit is installed on the building.Including two parallel and parallel tracks,Each planting unit includes a box around which a space is defined.1. Planting opening on the box；1. A drain provided at the bottom of the box；And two limit blocks which are respectively arranged on the left and right sides of the box body and can be separately extended into the two tracks,The front and back ends of the box body are respectively formed with an inclined plane.The two inclined planes are arranged at the front and rear ends of the box body in parallel from the same direction.The two adjacent planting units slide in the two tracks by their stop blocks.The front end and the back end of the two adjacent boxes are butted together by two inclined planes of the front and rear boxes.In the form of fish scale assembly.一種組合式植栽裝置，裝設在一建築物上，包含一軌道單元，及複數植栽單元。該軌道單元裝設於該建築物上，包括二平行併列設置之軌道，每一植栽單元包括一圍繞界定出一容置空間的盒體、一開設於該盒體上之植栽口、一設置於該盒體底部之排水口，及二分設於該盒體左右兩側且可分離地伸入該二軌道中之限位塊，該盒體之前後兩端分別形成有一傾斜面，該二傾斜面是自同一方向平行地傾斜設置於該盒體前後兩端，相鄰兩植栽單元藉由其限位塊於該二軌道中滑移，而相鄰兩盒體之前端與後端藉由前後盒體之二傾斜面相互抵接在一起，以呈魚鱗式組裝態樣。
