Jade plants are popular succulents grown as indoor houseplants. You can increase your supply by rooting individual leaves or small branches. Jade plants often propagate themselves this way in the wild. Fallen leaves or small branches take root when they land and form a new plant. A new jade plant can be grown from a single leaf.
Fill a 2-inch starter pot with vermiculite, perlite or other sterile soilless medium. Water until the medium is moist but not soggy.
Sterilize a knife by dipping into rubbing alcohol.
Use the sterilized knife to cut off a leaf, including the leaf-stem or a small branch just below a stem joint (the point at which a leaf grows out from the branch). Branches should be no larger in diameter your little finger.
Set the cut leaves and/or stems on the small piece of cardboard in a warm place for a few days until the cut area dries and begins to heal over. This will take 2- to 3-days for leaves and 3- to 4-days for small branches. Don't crowd the cuttings on the cardboard; leave space for air to circulate around them.
Push the cut end of the leaves or stems into the prepared 2-inch pot.
Set the pots in a warm spot with bright, indirect light. A north or east-facing window is ideal.
Water when the top of the soilless growing medium feels dry just below the surface.
Check for root formation in about 4 to 6 weeks. Gently pull on the leaf or stem cutting; if it resists a gentle tug, roots have formed and they are ready to pot up in indoor potting soil formulated for succulents.