Harris LECA Clay Pebbles for Plants

I was uncertain if I used this product correctly as I was attempting to root cuttings with it. Despite pre-rinsing, my coleus cuttings ended up with mold and minimal root growth. However, the sweet potato vine cuttings I also used at the same time and in the same way rooted very well without any mold issues. All plant material had been cleaned with soapy water before use. It could be that different plants have varying preferences for moisture and light levels. I experimented with using the…