Space is always a consideration! Underplanting in larger containers may work. Has anybody tried this? One of the ones stush shared with me is fairly short, 8-10" leaves, and it pupped enough that I divided it into 3 pieces and spaced it around one of my ficus trees. Eventually, it will totally underplant that tree, but for now there are coleus cuttings tucked between.
I know ficus like more moisture than sans, but I figure the top layer of potting mix in a big container will be more dry. Maybe I should mix perlite into the top layer? I just repotted that ficus, so its roots don't really start spreading out until 3" down. The ficus roots may also take up enough water to help with any drainage issue.