Indoors: Propagate and divide Flamingo Flowers in the early spring when emerging from dormancy. Pull from the container and brush or wash away the soil carefully. Carefully divide and keep at least two rhizomes together and repot in a rich, indoor potting soil mix. Use a container that has drainage and is deep enough for the roots to grow. Place the rhizomes at least 1-2 inches down into the soil. Set it in bright, indirect sunlight while they are rooting. Check the moisture and humidity each day and add misting to keep the soil moist while the roots establish. After 6-8 weeks, roots will begin to form. You can tug onto the stem to ensure the roots are establishing. Outdoors: Carefully loosen the soil and dig the tubers up, avoiding damaging the rhizomes. Divide the rhizomes and plant in new locations in your garden. Add rich, damp, and loamy soil in a part-shade morning sun location.