I cut two branches into about 15 little 4-6” sections and dipped into rooting powder about 3 weeks ago. I used damp sand and perlite and placed in a shaded area and covered with a clear box.
It’s easy to clone your Purple Heart plant. Simply make cuttings about 4-6” long and ensure the node is in the soil. Wet them well and keep moist over the next 3-4 weeks. They also root easily in water. In Texas I place them in the shade with almost no direct sunlight during the summer as 4” pots will dry out the soil very quickly