PROBLEM TO BE SOLVED: To provide a kit for indoor hydroponics comprising a seedling for low potassium vegetable and a cultivation medium in which a user can easily cultivate the seedling and can eat a fresh low potassium vegetable.SOLUTION: When the seedling with a known potassium content, which is hydroponically cultivated in a predetermined initial cultivation period under the ordinary hydroponic cultivation conditions, is used as a reference seedling, the kit for indoor hydroponics of low potassium vegetable, in which the users can cultivate indoors and can harvest indoors, comprises: a seedlings (A) cultivated in the same initial cultivation period under the same ordinary hydroponic cultivation conditions as the reference seedling and a low potassium nutritious liquid in which the main component of the cultivation medium is obtained by charging, into water, a water-soluble sodium compound, a water-soluble phosphorus compound, a water-soluble calcium compound, a water-soluble magnesium compound, and a water-soluble nitrogen compound, without charging a water-soluble potassium compound.SELECTED DRAWING: NoneCOPYRIGHT: (C)2017,JPO&INPIT【課題】ユーザーが容易に栽培でき、新鮮な低カリウム野菜を食することを可能にし得た低カリウム野菜用の苗と栽培養液とからなる室内水耕栽培用キットを提供する。【解決手段】所定の初期栽培期間を通常の水耕栽培条件で水耕栽培したカリウムの含有量が既知の苗を基準苗とした場合、基準苗と同一の通常の水耕栽培条件で、同一の初期栽培期間栽培した苗 (A)と、栽培養液の主たる成分が、水溶性カリウム化合物が投入されておらず、水溶性カリウム化合物が投入されておらず、水溶性ナトリウム化合物、水溶性リン化合物、水溶性カルシウム化合物、水溶性マグネシウム化合物、水溶性窒素化合物が水に投入されてなる低カリウム化養液とからなるユーザーが室内で自家栽培し収穫できる低カリウム野菜の室内水耕栽培用キット。【選択図】なし。