The article presents the results of research on the sources and potential of plantations of fast-growing trees in Poland, as well as the advantages and difficulties connected with them. Additionally, the paper describes the suitability of wood biomass from plantations of fast-growing trees for production and energy purposes. More-over, the article oulines difficulties in the interpretation of such terms as “fast-growing trees”, “plantation crops”, and “plantation” in the context of place and activities connected with the procurement of biomass from outside forest ecosystems.