The use of hexagonal boron nitride (hBN) as ultra-smooth, weakly interacting van der Waals substrate for organic thin film growth and self-organization is an active area of research. hBN effectively decouples the adsorbed species from the support making intrinsic material’s properties visible which would otherwise be masked by the strong surface-adsorbate interaction. Thus, new insights in fundamental aspects of intermolecular interaction, self-assembly, electronic structure or chemical reactions are possible.