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Rhubarb is a popular perennial vegetable that can provide abundant harvests when properly cared for. One effective way to increase your rhubarb yield is by dividing the plants. This process helps rejuvenate older plants and encourages the growth of new, healthy crowns.
Why Divide Rhubarb Plants?
Dividing rhubarb plants offers several benefits:
- Promotes vigorous growth
- Increases overall yield
- Prevents overcrowding
- Removes dead or diseased sections
When Is the Best Time to Divide?
The ideal time to divide rhubarb is in early spring, just as the plant begins to emerge from dormancy, or in late fall after the leaves have died back. Avoid dividing during the heat of summer or winter.
Tools and Preparations
Gather the necessary tools before starting:
- Sharp garden spade or shovel
- Garden fork
- Clean pruning shears
- Gloves
- Compost or organic matter for replanting
Steps to Divide Rhubarb
Follow these steps to successfully divide your rhubarb:
1. Prepare the Site
Choose a cloudy day or early morning to reduce stress on the plant. Water the rhubarb well a day before dividing to soften the soil.
2. Dig Around the Plant
Use a spade or garden fork to carefully dig around the base of the plant, about 12 inches away from the crown. Loosen the soil and lift the entire root mass out of the ground.
3. Divide the Root Crown
Inspect the root ball and identify natural divisions. Use clean pruning shears to cut the crown into sections, each with at least one bud and a healthy root system. Discard old, woody, or diseased sections.
4. Replant the Divisions
Plant each division in prepared soil, with the crown just below the surface. Space divisions about 3 feet apart to allow for growth. Water thoroughly after planting and mulch to retain moisture.
Aftercare and Maintenance
Ensure your divided rhubarb receives consistent watering, especially during dry periods. Fertilize annually with compost or balanced fertilizer. Remove any flower stalks to encourage leaf growth and maintain plant health.
Tips for Successful Division
- Divide every 4-6 years for optimal productivity
- Use sharp tools to prevent damage
- Avoid dividing during extreme weather conditions
- Label divisions if planting in multiple locations
By following these steps, you can effectively divide your rhubarb plants, leading to healthier plants and increased yields in the seasons to come. Happy gardening!