Beyond the single tree: the ancient art of creating miniature landscapes

Touring a bonsai and penjing collection and tips for home growers | Discovery | Gardening Australia · 7:11 · Video: Gardening Australia · Watch at the source

In short: While many recognize bonsai as the Japanese art of miniature trees, its origins lie in China. Known as penjing, this practice transcends single specimens to create entire tray-based worlds. Discover how curators use specific volcanic minerals and seasonal pruning to sculpt these living stories.

The National Bonsai and Penjing Collection of Australia, located within the National Arboretum in the ACT, showcases a distinction often lost in modern terminology. While the Japanese term bonsai translates to 'tree in a pot,' the Chinese tradition of penjing, or 'tray scenery,' is much older, predating the Japanese practice by approximately 700 years. Unlike bonsai, which focuses on individual miniature trees, penjing incorporates elements like rocks to represent mountains and figurines to build a complete, narrative landscape.

Achieving this level of detail requires precise control over the growing medium. Curators like Sam Thompson and Leigh Taafe utilize an inorganic mix designed for aeration and moisture retention. This specialized substrate often includes New Zealand pumice for water capacity and scoria for airflow. A critical component is akadama, a Japanese fired clay; as this clay breaks down, it encourages roots to divide and multiply. Other additives, such as zeolite, are used to help the soil retain essential nutrients.

For those looking to begin at home, the process involves a cycle of structural and maintenance pruning. Structural pruning defines the plant's primary form and is ideally performed during the winter dormancy period. Throughout the growing season, maintenance pruning is required to manage new growth. Home growers can start with a sandy, commercial bonsai mix containing composted material. While many enthusiasts look to traditional species, Australian natives like Banksia, tea tree, and melaleuca are increasingly popular for their unique structures and seasonal interest.

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