Take cuttings in late spring or early summer. Early morning is best.
Preparation
Not all cuttings will root. Always do some extras just in case.
Fill six 3-inches flower pots with potting mix and water thoroughly. Top up with potting mix if needed.
Have clean scalpel, rooting hormone, cutting board, plastic bags ready in work area.
Place warm, damp paper towel in plastic bag.
Take Cutting
Do not choose stems with buds or flowers. Vine should be at least two years old.
Select a long (3-foot) stem without any buds or flowers. Cut just above a leaf joint.
Immediately place cut end between damp paper towels in bag.
Prepare Cutting for Rooting
Each stem has a tip and bottom that leads to the main plant. You will be cutting your cutting into smaller sections and planting the stem bottoms of each new piece in potting mix.
With a clean scalpel, slice cutting as shown in diagram. First cut is one inch above a leaf joint, second cut removes one leaf stem, 3rd cut is two inches below leaf joint.
Dip stem bottom in dish of rooting hormone powder, tap off excess, and insert stem into potting mix against inside of pot.
Repeat placing up to four cuttings in each pot.
Add Bag Greenhouses
If air is dry, loosely cover cuttings with plastic bags but allow air flow in and out. I prop them up with chopsticks. Do not let bag touch cuttings.
Care
Place out of direct sun in warm spot with indirect light.
Check plants daily and water as needed: soil should be moist but not damp.
Roots should form in 2-4 weeks.
Continue growing and move to larger pot as needed. Add to garden by late summer.