How to Root Million Bells

Written by kimberly johnson
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Million bells is a variety of calibrachoa that looks very similar to a petunia. It grows in a trailing pattern that hangs down over planters or spreads out along the surface of the ground. Million bells gets its name because it produces many flower blooms along the stems of the plant during the late spring and early summer. Propagating million bells is done by taking a stem cutting from an existing plant and forcing it to grow roots.

Skill level:

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Things you need

  • Hand pruners
  • Bucket
  • Potting soil
  • Peat moss
  • Spoon
  • 4- to 5-inch diameter plant pot
  • Water
  • Plant grow light (optional)
  • Thermometer
  • Heating mat

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  1. 1

    Trace a healthy stem back to the ground from an existing million bells plant any time during the growing season. Cut the stem off at least 6 inches from the tip. Try to find a stem that has small buds but no flowers on it.

  2. 2

    Fill a small bucket with a mixture of half potting soil and half peat moss. Mix the two together well with a spoon.

  3. 3

    Fill a 4- to 5-inch diameter plant pot three-fourths full of the potting soil mixture and poke a 1-inch-deep hole in the centre of it with your finger.

  4. 4

    Insert the cut end of the million bells cutting into the hole and push the soil up around the stem to hold it in place. If any leaves touch the soil surface, pull them off of the stem with your fingers to prevent them from rotting.

  5. 5

    Water the soil with 1/4 cup of water just until it is barely moist. Apply additional water if the soil starts to feel dry, but do not over water. Saturated soil during the first two weeks can kill the cutting.

  6. 6

    Place the container near a window that receives bright sunlight. If bright sunlight is not available, such as during winter, place the pot under plant grow lights positioned 6 inches above the stem.

  7. 7

    Place a thermometer near the pot to ensure that it maintains a constant temperature of 21.1 degrees Celsius. If needed, set the pot on a heating mat set to 21.1C to provide necessary warmth.

Tips and warnings

  • Million bells cuttings will develop roots within two weeks.

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