Stem cuttings are the best approach to growing this plant. This is not only a cheap way to grow a new plant, but it also allows you to keep the lineage of a variety whose flowers you particularly enjoy. Mid-summer is the best time to take cuttings.
• Trim a four-to six-inch-long, pencil-wide stem. Cut the leaves from the stem’s lower half.
• Rooting hormone should be dipped into the cut end of the stem.
• In a shallow container filled with soilless potting medium, plant the bottom third to bottom half of the stem. Check for drainage holes in the container.
• To softly wet the growth medium, water it.
• Cover the vessel with a transparent plastic bag.
• Place the container near a warm, indirect light source.
• Once every day, check the growth media to make sure it’s still wet. If necessary, add extra water, but don’t let it become soggy.
• After seven days, discard the plastic bag.
• In one to two months, look for roots. If you feel resistance when pulling on the stem, it has roots. The presence of new leaf growth indicates that the stem has rooted.
• Before placing it in your garden, wait for at least 2 inches of stem development.