Ruellia cordata can be easily propagated from cuttings, taken in spring time. With a sharp, clean blade, cut healthy looking stems below a node, 10 to 15 cm long, strip off any leaves near the base of the cutting and remove the flowers. Prepare the tray: put bark chips in the bottom of the tray and mix potting soil and sand and put it on top of the bark chips and water it. Poke small holes in the soil mixture, dip the cut end of the cuttings into the powdered rooting hormone and place the cuttings into the holes made in the rooting medium (potting mix and soil).

Place your tray of cuttings in bright, indirect light and keep them moist. Once the cuttings develop roots, replant them in pots or plant bags filled with moist but not wet, potting soil. To check if the roots have formed or not, pull lightly on the cuttings. If they pop out they are not ready.