The present invention is to provide a binding machine for gardening having a tape holding device, capable of obtaining high holding strength while problems in which a tape is torn when a claw is stabbed to a thin tape or a claw is not stuck in a thick tape do not occur. The tape holding device (35) comprises a support unit (36) provided on a clincher arm (30), and a holding member (37) facing the support member (36). The support unit (36) and the holding member (37) can be held by inserting a tape (60) from both sides.
