Begonias are flowering plants native to South America and southern Africa. The plants are commonly found in garden beds, hanging baskets, and flower pots. The begonia is prized for its glossy deep green leaves and flowers. The begonia's flowers come in shades of pink, red, coral, orange and white. Begonias are propagated by plant cuttings, which take root and develop into new plants.
Examine the begonia plant, and find the plant's longest stem. Cut a 5- to 6-inch piece off the tip of this stem. The cutting must have at least two pairs of leaves on it. Use gardening shears or sharp scissors to make the cut as clean as possible.
Fill a small jar or glass with room temperature water. Remove the lower pair of leaves from the begonia cutting, leaving a long bare stem with a pair of leaves near the top.
Put the bare stem end of the cutting into the glass of water. Place the jar in a sunny window with southern or western exposure. Leave the jar in the window for at least 3 weeks. Replenish the water as needed.
Remove the cutting from the water when a rudimentary root system sprouts from the bottom of the cutting.
Fill a small flower pot with potting soil. Press a 3-inch deep hole into the center of the soil with your finger. Plant the cutting in the hole, and gently tamp the soil down around the cutting to fill in the hole and provide support the cutting. Water the cutting thoroughly. Thereafter, water the new begonia plant when the soil is dry to the touch.