How to Grow Petunias From Cuttings

Overview

Petunias are often a gardener's staple. They bloom in the spring, usually without fail, and can survive and thrive with little care. There is no need to fork out money for seeds to propagate petunias. Take cuttings from existing petunia plants and encourage them to grow roots. Eventually they will become their own individual plants. Petunias are easy to root, especially in the spring when the plants are rapidly growing.

Step 1

Choose a healthy looking stem from a healthy petunia to root. Cut off 3 to 5 inches of the stem just below a node (where leaves grow). Make a clean cut uing a pair of sharp clippers or scissors.

Step 2

Pinch off the petunia leaves on the bottom 1-½ inches of the stem. Do not plant the leaves.

Step 3

Dip the cut on the bottom of the stem in rooting hormone to help encourage the roots to form. Shake the excess rooting hormone off of the stem.

Step 4

Plant the bottom 1-½ inches of the stem in a container with drainage holes. Fill the container with equal amounts of sand, perlite or vermiculite with peat moss or sphagnum moss. Water the rooting medium (soil) until it is slightly moist.

Step 5

Cover the cutting with plastic or glass if possible to keep the cutting from losing too much moisture.

Step 6

Set the cutting out of direct sunlight in an area that is around 60 to 65 degrees F. Keep the soil moist and check on it every two to three days.

Step 7

Tug gently on the cutting to check if it has rooted. Resistance from the cutting indicates that roots have formed. Transplant the cutting to a larger container in six to eight weeks.

Things You'll Need

  • Clippers or scissors
  • Rooting hormone
  • Container
  • Sand, perlite or vermiculite
  • Peat moss or sphagnum moss
  • Plastic or glass top, or plastic bag

References

  • Washington State University Extension: Propagating Herbaceous Plants from Cuttings
  • Weekend Gardener: Questions and Answers
Keywords: root petunias, propagate petunias, petunia cuttings

About this Author

Melissa Lewis has been a professional writer since 2005. Her work has appeared in various online publications. A former elementary classroom teacher and media specialist, Lewis is also a script writer, with a movie script, "Homecoming," she co-wrote currently in production. She holds a Bachelor of Arts in psychology.