Although physical and physico-chemical properties are con-sidered to be inadequate for rooting, V1 and V2 and their mixesproved successful for rooting rosemary plants. Gutiérrez-Miceliet al. (2008) found that the cress germination index with a ver-micompost leachate met standards, the vermicompost leachatestimulating plant development when used as fertilizer for sorghumgrowth. Arancon et al. (2012) reported that germination andseedling growth of lettuce and tomato increased with higher pro-portions of vermicompost extracts. Humic substances of somecomposts have been linked to growth-promoting factors and, inparticular, to increased root dry matter (Azcona et al., 2011).Auxin-like compounds which were not present at the start ofcomposting were released during fern composting (Arthur et al.,2007). V1 and V2 based substrates might supply plants withsuch growth-promoting factors that induce root growth in cut-tings.