PROBLEM TO BE SOLVED: To significantly enhance the multiplication rate of a bulb plant with a simple procedure without increasing a special facility.SOLUTION: A multiplication and cultivation method of a bulb plant comprises the steps of: collecting a bud 2 budded from a bulb 1 of a bulb plant by picking, breaking off, or cutting off in a state of containing a base part of the bud 2 contacting the bulb 1 or the upper vicinity of the base part herbaceous cutting, temporary planting or planting the collected bud 2, and then performing multiplication by bulb division of an enlarged bulb 1d and planting the original bulb 1, and then performing multiplication by bulb division of an enlarged bulb 1a.COPYRIGHT: (C)2014,JPO&INPIT【課題】特別な施設を増設することなく簡易な手順で、球根植物の増殖率を大幅に高める。【解決手段】球根植物の球根1から萌芽した芽2を、球根1に接する芽2の基部または同基部の上部近傍を含む状態で、摘み取って又は折り取って又は切り取って採取し、採取した芽2を、挿し芽または仮植または定植し、その後、肥大した球根1dを分球することで増殖を行なう。さらに、元の球根1も定植し、その後、肥大した球根1aを分球することで増殖を行なう。【選択図】図1