“…Several sources of material can be used in the cultivation of epiphytic orchids, some of which of plant origin, such as coconut fiber, coconut powder (ASSIS et al, 2005(ASSIS et al, , 2008, carbonized rice husk (ARAUJO et al, 2007;YAMAKAMI et al, 2009;SORACE et al, 2009), pine bark (YAMAKAMI et al, 2006;MULLER et al, 2007;LONE et al, 2008), coffee husk (ASSIS et al, 2011;MORA et al, 2015), almond seeds (SANTOS; TEIXEIRA, 2010), among others, others of mineral origin, such as vermiculite (REGO et al, 2000;FARIA et al, 2001), expanded clay, and gravel, and even synthetic materials, such as styrofoam (CORRÊA et al, 2000;MORAES et al, 2002) and phenolic foam, which have been tested in isolation or in association with other materials and have provided satisfactory results in the development of epiphytic orchids.…”