How to Propagate Mandevilla
- 1). Cut a 4- to 6-inch cutting from the end of a Mandevilla vine. Choose a section with at least four or five leaf nodes.
- 2). Remove the leaves from the bottom half of the cutting. Treat the end with a powdered rooting hormone.
- 3). Fill a large pot with a mixture of potting soil and sphagnum moss. Mandevilla vines grow best in soil that drains well.
- 4). Plant the cutting in the large pot. Bury the end 1 to 2 inches below the surface of the soil. Tamp the soil down gently by hand.
- 5). Water the Mandevilla cutting so that the soil is damp but not completely saturated.
- 6). Place the container in a large, clear plastic bag. Tie the bag closed with a rubber band.
- 7). Situate the container in an area that gets strong, indirect sunlight. Direct sunlight is magnified through the plastic and can burn the vines.
- 8). Check the soil daily. Water the cutting when the soil is completely dry. Keep the plant moist but not completely soaked.
- 9). Check for root growth after two months. Continue to check once a week if roots haven't begun to appear. Once roots are over 2 inches long, remove the plastic bag.
- 10
Move the Mandevilla to an area with partial shade. Fertilize once a month with 10-20-10 fertilizer. Discontinue fertilizing during the winter months.
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