I don't have much experience using plants in roach enclosures, but something along the lines of Sansevieria (Dracaena), Tillandsia, or Aloe species might do well, depending on how much light they get. Pothos might work as well. These aren't necessarily native to the same areas as domino roaches though. You might have more options if you keep the plants in plastic pots in the substrate. I would definitely be curious to see how it turns out if you try it.