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How to Propogate Dahlia Plant the Right Way

Updated: April 21, 2022

Dahlias are beautiful and vibrant flowers that come in a range of colors and shapes. They are easy to grow and can be propagated through several methods. In this article, we will discuss the right way to propagate dahlia plants.

Understanding Dahlia Plant Propagation

Propagation refers to the process of creating new plants from existing ones. Dahlia plants can be propagated through seeds, cuttings, and division. Each method has its own merits and demerits.


Growing dahlia plants from seeds is a time-consuming process. It takes anywhere from 2-3 years for the plant to bloom. However, it is an inexpensive way to grow new plants. You can collect seeds from the flowers that have finished blooming. The seeds should be sown in a well-drained soil mix during spring.


Propagating dahlia plants through cuttings is a faster method compared to seeding. The cuttings can be taken during May or June when the plant is actively growing. Take cuttings from the new growth that has not yet bloomed. The cutting should be at least 4 inches long and should have at least two sets of leaves.


Dividing dahlia plants is the easiest and quickest method of propagation. It involves dividing the tubers into sections and planting them separately. Divide the plant during spring or fall when it is not actively growing.

Propagating Dahlia Plants Using Cuttings

In this section, we will discuss how to propagate dahlia plants using cuttings.

Materials Required

  • Sharp scissors
  • Rooting hormone
  • Small pots
  • Potting soil
  • Water spray bottle


  1. Select a healthy dahlia plant with new growth that has not bloomed.
  2. Using sharp scissors, take a cutting that is at least 4 inches long and has at least two sets of leaves.
  3. Remove the lower leaves from the cutting, leaving only the top two sets of leaves.
  4. Dip the cut end of the stem into rooting hormone.
  5. Fill a small pot with potting soil and make a hole in the center.
  6. Insert the cutting into the hole and gently press the soil around it.
  7. Water the cutting well using a spray bottle.
  8. Cover the pot with a plastic bag to create a greenhouse effect.
  9. Place the pot in a bright but indirect light location.
  10. Remove the plastic bag once the cutting has rooted and has started to grow new leaves.

Frequently Asked Questions

How long does it take for dahlia cuttings to root?

Dahlia cuttings usually take anywhere from 2-4 weeks to root.

How often should I water my dahlia cuttings?

Dahlia cuttings should be watered regularly but not over-watered. The soil should be moist, but not waterlogged.

When can I transfer my dahlia cuttings to a larger pot or garden bed?

Dahlia cuttings can be transferred to a larger pot or garden bed once they have grown new leaves and are established. This usually takes about 4-6 weeks.

Can I propagate dahlia plants from leaves?

No, you cannot propagate dahlia plants from leaves. Dahlia plants can only be propagated through seeds, cuttings, or division.

In conclusion, propagating dahlia plants is an easy and fun way to grow new plants that will bloom beautifully. Cuttings are a simple way to propagate dahlia plants and can be done easily with some basic materials and a little care. With these tips, you can easily propagate dahlia plants and enjoy their vibrant blooms.