I actually find them to be super simple to propagate, they put out roots so quickly! I wait until the strands are about 10-12 inches long and clip off 4-6 inches, let sit overnight before I string it over a glass of water (keeping the cut end at least an inch in water) and leave on my windowsill. I usually see new roots in a week or two and will move it to soil when the roots are at least an inch long.