To grow a ti plant indoors, start by choosing a well-draining potting mix and a container with drainage holes. Place the ti plant in a location with bright, indirect sunlight. Water the plant when the top inch of soil feels dry, but avoid overwatering. Fertilize the plant every 2-4 weeks during the growing season. Prune any leggy or damaged growth to maintain a compact shape. Propagate the ti plant by taking stem cuttings and rooting them in water or moist soil.