A planting device and a planting system, the planting device comprises a planting basin and a siphon.The planting basin includes a basin body, a containing space which is surrounded by the basin body and can contain liquid, and a cultivating medium which can be placed in the containing space and used for cultivating the planting.The siphon comprises a pipe body and a flow passage defined by the pipe body.When the liquid in the holding space reaches a certain water level, the siphon can discharge the liquid through the siphon function, and then the planting device will continue to accumulate the liquid in the holding space until the liquid level in the holding space reaches a certain water level again, and then the siphon will discharge the liquid again, so that the planting device can maintain the moisture of the cultivation medium as the tide. Run Chengdu.一種植栽裝置與植栽系統,該植栽裝置包含一個植栽盆,及一個虹吸管。該植栽盆包括一個盆體、一個由該盆體圍繞界定而成並可容裝液體的容裝空間,及一個容置於該容裝空間並用以栽培該植栽的栽培介質。該虹吸管包括一個管體,及一個由該管體界定出的水流通道。該虹吸管能在該容裝空間內的液體達到一定水位時,藉由虹吸作用來排出液體,之後該植栽裝置會繼續累積容裝空間內的液體,直到該容裝空間內之液體的液面再次達到一定水位時,該虹吸管又再次排出液體,藉此該植栽裝置能如同潮汐一般來保持該栽培介質的濕潤程度。