You could try it like grandma did by placing the cutting in plain water and letting it sit for a week or two and see if it takes root. trying it on one cutting wouldn't hurt anything and it's only one plant if it fails. However rooting hormone has a much higher success rate. I was wondering about getting some willow bark and grinding it to a pulp them putting it in water and boiling it. Take the water and place into small mason jars and let cool. Place cutting into the water and place on a window sill and let her ride. Sort of home made rooting hormone. IF it worked you could use it in a pinch.