Got a favorite variety you’d like to save or share with friends? Here’s how to take cuttings and turn them into new plants. The process can be used with geranium (shown) and other annuals such as coleus, impatiens, and begonia.
STEP 1: Remove only healthy, nonflowering stems. With a clean, sharp knife, cut a 3–4-inch shoot below the leaf node (the spot where a leaf emerges from a stem). Remove the bottom leaves and buds of the shoot so the plant devotes its energy to forming roots rather than growing leaves or flowers.
STEP 2: Sprinkle rooting hormone powder, such as Miracle-Gro Fast Root (#423111), on a saucer. Dip the cutting in the powder, which will encourage root growth once it is planted.
STEP 3: Fill a small pot with soilless potting mix that has been moistened. Use a pencil to poke a planting hole.
STEP 4: Carefully insert the cutting about 1 inch into the planting hole; avoid knocking off the rooting powder. Gently press the potting mix against the stem.
STEP 5: Slip a plastic bag over the cutting and container. Fasten with a twist tie to create a mini greenhouse to boost growth. Set the container in bright, indirect light and water as needed to prevent potting mix from drying out.
STEP 6: Check for root development a few weeks after potting the cutting. Remove the bag and gently tip the container on its side, tapping out the soil and root ball. The plant is ready for transplanting when roots have begun to fill out along the inside of the pot.