Most varieties of hoya plants will propagate easily in water. To propagate, select a healthy vine with multiple leaves from your plant, and with a sharp, clean pair of shears or scissors cut the vine half a centimeter below above a leaf node. On your original plant, you will see that cut mark dies back, and a new vine will begin to grow from the node you left behind! Now, to make a fuller new plant, section this vine into multiple parts. Just as you cut the vine from the original plant, cut this vine half a centimeter above every leaf and leaf node until you have multiple little vines, each with at least one leaf. Put the cuttings all into a jar of water (making sure not to let any of the leaves sit underwater) and keep them in bright, indirect light. Change the water once a week and you should start to see roots form after a couple of weeks if you’re propagating in spring or summer. After you see roots appear, you can transport all of your cuttings into fresh soil in their own pot, and you’ve got a beautiful new hoya plant for your collection!