It will tolerate full sun or semi-shade, but regular watering is a must. In cold regions, Calliandra calothyrsus is suitable for growing in a pot. Pick a pot that is two to three times the size of a root ball and has plenty of drainage. In cold regions, overwintering plants in a pot can be tricky, so it is essential to pick the ideal container. Opt for a large pot that can easily fit your plant and enough soil to insulate the roots. If the container is too small, roots may freeze and die, so it's important to pick the right size. Also, adding Styrofoam beads, mulch, and good insulation around the pot can help the roots stay out of the cold.
Calliandra calothyrsus is definitely worth growing, as it is an ideal plant to attract butterflies, hummingbirds, and other pollinators. Not to mention its showy red, crimson, or vinous flowers and large shrub reaching 5 to 10 ft in height. It is a plant native to Mexico to Northern South America and grown in USDA Zone: 9-11.