Passion flower is native to the southeastern United States. It is grown for its showy flowers and some tropical species are grown for their fruit. The leaves, stems and flowers are used in some herbal medicines. Passion flower vines are commonly propagated by seed or by cuttings. Cuttings can be taken year round, but cuttings taken during the during the spring or summer while the plant is actively growing are most successful.
Use clean, sharp scissors or a knife to cut off the tip of a stem from a passion flower plant. Cut a section approximately 6 inches long.
Pinch off any flowers or buds and all but the two or three leaves at the tip of the cutting.
Fill a small pot or cup with damp sand to receive the cutting. A small paper cup is sufficient.
Use a pencil or a twig to punch a hole in the sand. Place the passion flower cutting stem into the hole about 2 inches deep and press in the sand around it to support the stem.
Place the cutting in bright light, but out of direct sunlight. A window ledge in a cool room is best.
Cover the passion flower cutting and pot loosely with a plastic bag to maintain humidity.
Check the rooting plant every few days, keeping the sand moist, until the roots are about an inch long.This should take about two weeks. When in doubt, gently move the sand at the top of the cup to check the roots, or peel back a portion of the cup to check the root ball. Leave the roots as undisturbed as possible.
Plant the passion flower cuttings into a larger pot filled with potting mix.
Move passion flower plants that are to be planted outdoors outside for a few hours, increasing the time outdoors by a few hours each day until the plant is outside all day. At this point, it is ready to be planted outside.