Bonsais use only woody plants or trees which are dwarfed and trimmed to look ancient and weathered. Unusual rocks and water may be added to produce a miniature landscape. Cultivating a respectable standard bonsai requires at least 20 years, maybe 30 or 40.
盆景則必須用木本植物，而且要經過修剪整枝，使樹長成粗矮古氣，蒼老虯曲；或並在盆中置奇石，令樹依石勢生長，造出一份山野情趣。