Updated: June 29, 2023

Rhubarb is a delicious and versatile plant that is commonly used in pies, jams, and other desserts. It is also very easy to propagate, making it an excellent addition to any garden or vegetable patch. Whether you are a seasoned gardener or a beginner, this article will guide you through the process of propagating rhubarb plants correctly.

What is Rhubarb Propagation?

Propagation is the process of reproducing plants by various methods, such as seeds, division, or cuttings. When it comes to rhubarb, the most common method of propagation is through division. This means separating an existing plant into multiple smaller plants that can be replanted and grown independently.

When to Propagate Rhubarb

The ideal time to propagate rhubarb is during early spring or late autumn when the plant is dormant. Dividing the plant during these periods will give the newly separated plants enough time to establish their roots before the next growing season.

Step-by-Step Guide to Propagating Rhubarb

Step 1: Selecting a Mature Plant

Choose a healthy and well-established rhubarb plant that is at least three years old for propagation. Older plants tend to have larger root systems, making it easier to divide them into multiple plants.

Step 2: Preparing the Plant for Division

Before dividing your rhubarb plant, water it well a day or two in advance. This will ensure that the soil is moist and easier to work with. Start by removing any weeds around the base of the plant and cutting back any dead or damaged foliage.

Step 3: Digging up the Plant

Using a garden fork or shovel, carefully dig around the perimeter of the plant, creating a trench about 12 inches away from the crown. Gently lift the entire plant out of the ground, trying not to damage the roots.

Step 4: Dividing the Plant

Once the plant is out of the ground, shake off any excess soil and examine the root system. Look for natural divisions or clusters of buds, known as “eyes,” on the crown. Using a sharp knife or garden shears, carefully separate the plant into smaller sections, ensuring that each section has at least one strong bud and a healthy portion of roots attached.

Step 5: Replanting the Divisions

Prepare the planting area by loosening the soil and adding organic matter such as compost or well-rotted manure. Dig individual holes for each division, making sure they are wide and deep enough to accommodate the root system without crowding. Place each division into its respective hole, ensuring that the buds are facing upwards. Backfill the hole with soil, firming it gently around the plant.

Step 6: Watering and Mulching

After replanting, water the newly divided rhubarb plants thoroughly to help settle the soil and encourage root growth. Apply a layer of organic mulch, such as straw or wood chips, around the base of each plant to help retain moisture and suppress weed growth.

Step 7: Caring for Newly Divided Plants

For the first few weeks after dividing, it is important to keep an eye on your newly propagated rhubarb plants. Water them regularly to keep the soil moist but not waterlogged. Avoid over-fertilizing during this time, as it may cause stress to the plants. Instead, wait until the following spring to apply a balanced fertilizer.

Tips for Successful Rhubarb Propagation

  • Choose a sunny location for your rhubarb plants as they thrive in full sun.
  • Ensure that the soil is well-draining and rich in organic matter.
  • Avoid harvesting any stalks from newly divided plants during their first year to allow them to establish strong root systems.
  • Divide your rhubarb plants every 5-7 years to maintain their vigor and productivity.
  • Keep an eye out for common pests and diseases, such as aphids or crown rot, and take appropriate measures to control them.

Conclusion

Propagating rhubarb plants through division is a simple and effective way to expand your garden or share this delicious plant with others. By following the step-by-step guide outlined in this article, you can ensure successful propagation and enjoy the benefits of homegrown rhubarb for years to come. Happy gardening!