The ‘Taxon|Archive|Lab - Library’ or, TAL-L, is a database and teaching tool for landscape materials. The project reflects on the environmental challenges of material use today and aims to restore our knowledge about landscape materials through strategic indexing and experimentation. TAL-L samples the varied compositions of landscape materials across Hong Kong; records its layered historic alterations; maps its flows, its extractions, and its accumulation. It aims to outline a methodological framework fit to deal with landscape materials as a complex resource and is unique in providing a multimedia material database for landscape architects focused on sites and resources in Hong Kong.