What variety did you get? Don't try to cut and root it on it's own. Take a small plastic pot and cut it in half so that you can wrap it around this sucker. Use some duck tape to repair the slice. Pack some good potting soil firmly into the pot and make sure you water it and keep it moist. In about 4-6 weeks you will see roots towards the top of the pot. This means that you have airlayered a small tree. Sever the sucker just below the pot at ground level and keep in shade for a few weeks.