PROBLEM TO BE SOLVED: To enhance plant growth.SOLUTION: The plant cultivation device comprises: a watering sheet (7) for supplying a nutrient solution to be sprinkled from an infusion tube (4) to the culture medium (6); and a water permeable member (8) disposed around an exposed outer part of the watering sheet (7) of the plant (P) planted in the culture medium (6). The water permeable member (8) is disposed so as to be in contact with the watering sheet (7), and a nutrient solution is supplied to the plant P through the watering sheet (7).SELECTED DRAWING: Figure 2【課題】植物の生育を促進させる。【解決手段】点滴チューブ(4)から灌水される養液を培地(6)に供給する灌水シート(7)と、培地(6)に植えられた植物(P)における灌水シート(7)の外部に露出した部分の周囲に配置される透水性部材(8)とを備え、透水性部材(8)は、灌水シート(7)と当接するように配置され、灌水シート(7)を介して供給される養液を植物Pに供給する。【選択図】図2