PROBLEM TO BE SOLVED: To provide a horticultural binder capable of reducing a load for operating a handle by reducing a load associated with an operation of a lock member of a tape gripping device.SOLUTION: A tape gripping device 35 comprises: a support part 36 disposed along a direction of pulling out a tape 60; a gripping member 37 disposed to face the support part 36; gripping member energizing means 38 for energizing the gripping member 37 to a direction of the support part 36; and a lock member 39 engaged with the gripping member 37 to hold the gripping member 37 at a stand-by position resisting an energizing force of the gripping member energizing means 38; and lock member energizing means 40 for energizing the lock member 39 to a direction for engagement with the gripping member 37. The lock member 39 is rotatably attached to the clincher arm 30.SELECTED DRAWING: Figure 12COPYRIGHT: (C)2018,JPO&INPIT【課題】テープ把持装置のロック部材の動作に係る荷重を低減させることで、ハンドルを操作する際の荷重を低減することができる園芸用結束機を提供する。【解決手段】テープ把持装置35は、テープ60の引き出し方向に沿って設けられた支持部36と、支持部36に対向するように設けられた把持部材37と、把持部材37を支持部36の方向に付勢する把持部材付勢手段38と、把持部材37に係合することで把持部材付勢手段38の付勢力に抗して把持部材37を待機位置に保持するためのロック部材39と、ロック部材39を把持部材37に係合する方向に付勢するロック部材付勢手段40と、を備える。ロック部材39は、クリンチャアーム30に対して回動可能に取り付けられている。【選択図】図12