Persian shield is a tropical foliage plant that thrives in hot and humid conditions in rich, moist soil. Great as a focal point in your container garden or beds with coleus in part shade. Pinch back young plants to encourage branching. Potted plants can be overwintered indoors as houseplants; bring them in before temperatures drop below 45°F, and place them in a sunny, warm window. Prune back in springtime if legginess is a problem; the plant may eventually become woodier with less dense foliage as it ages.