One of the environmental concerns related to the textile industry is the high quantities of waste that can be obtained, such as sludge, stones and sand. The objective was to quantify the total porosity, the humidity retention curve, the variation of humidity through time in industrial sludge, pumice stone, sand, and the combination of these substrates, to determine their potential use as ... [Show full abstract] alternative substrates. It was found that the moisture content increased as the porosity of the substrate increased. The highest moisture content was 41%, which was obtained with the industrial sludge, in addition, had less daily moisture loss (3.1%) compared to 4.1% in sand. According to the results obtained, the industrial residues can be an alternative to use them as substrates; however, it is necessary to carry out chemical and microbiological studies to assess whether the industrial residues content toxic elements or contaminants that might affect the growth of crops or the health of consumers.