Rhubarb, with its tart and tangy stalks, is a beloved perennial vegetable that adds a delightful touch to pies, jams, and desserts. As the plant matures, it may outgrow its original space, resulting in reduced vigor and productivity. To maintain a healthy and thriving rhubarb patch, it’s essential to divide the plant periodically. In this comprehensive guide, we will explore the process of dividing rhubarb, providing you with valuable insights on when and how to do it. Whether you’re a seasoned gardener or a novice enthusiast, this article will equip you with the knowledge you need to successfully divide your rhubarb plants.

When to Divide Rhubarb

Rhubarb division is ideally done during the plant’s dormant season, which occurs in early spring or late autumn. Dividing rhubarb during these periods allows the plant to establish itself before the onset of active growth in the following season. Aim to divide rhubarb every 4 to 5 years to maintain plant health and productivity. However, there are a few key signs that indicate it’s time to divide your rhubarb:

• Overcrowding: If your rhubarb patch appears crowded, with plants competing for space, it’s a clear sign that division is necessary.
• Reduced Yield: If you’ve noticed a decline in the size and quality of the rhubarb stalks, it may be an indication that the plant requires division.
• Flowering: Rhubarb plants typically produce large flower stalks, which divert energy away from the edible stalks. If your rhubarb is flowering excessively, it’s time to divide the plant.

How to Divide Rhubarb

Dividing rhubarb may seem like a daunting task, but with the right approach, it can be a straightforward process. Follow these step-by-step instructions to successfully divide your rhubarb:

Step 1: Preparing for Division

Choose the right time: As mentioned earlier, divide rhubarb during the plant’s dormant period, either in early spring or late autumn.

Select healthy plants: Identify the healthiest rhubarb plants that display vigorous growth and produce high-quality stalks.

Prepare the soil: Prior to dividing, ensure the soil in the new planting location is well-draining, fertile, and enriched with organic matter.

Step 2: Dividing the Rhubarb

Dig up the plant: Carefully dig around the rhubarb plant, creating a wide circle around the clump. Take care not to damage the roots.

Lift the clump: Use a garden fork or spade to lift the entire rhubarb clump out of the ground. Shake off excess soil to expose the root system.

Separate the divisions: Identify natural divisions within the clump and gently separate them. Each division should have at least one bud or growing point and a portion of the root system.

Trim the divisions: Trim the foliage of each division to around 6-8 inches in length. This will reduce water loss and help the plant focus its energy on root establishment.

Step 3: Replanting the Divisions

Choose the planting site: Select a new planting site with well-drained soil and adequate sunlight. Rhubarb thrives in full sun but can tolerate some shade.

Dig planting holes: Dig holes that are wide and deep enough to accommodate the rhubarb divisions without crowding the roots.

Plant the divisions: Place each division into its respective hole, ensuring the bud or growing point is at or slightly below the soil surface. Space the divisions at least 12-18 inches apart to allow for proper growth and development.

Backfill and water: Gently backfill the holes with soil, ensuring that the divisions are securely in place. Lightly firm the soil around the plants and water thoroughly to settle the soil and provide initial hydration.

Step 4: Post-Division Care

Mulch the area: Apply a layer of organic mulch, such as straw or compost, around the newly divided rhubarb plants. Mulching helps conserve moisture, suppress weeds, and provide a slow release of nutrients.

Watering and maintenance: Keep the soil consistently moist but not waterlogged, especially during the first growing season. Monitor the plants regularly and water as needed. Remove any weeds that may compete with the rhubarb for nutrients and space.

Fertilization: Rhubarb plants benefit from regular feeding. Apply a balanced organic fertilizer or compost in early spring and again in late summer to promote healthy growth.

Conclusion:

Dividing rhubarb is a simple yet crucial task for maintaining the vitality and productivity of your plants. By following the proper timing and techniques outlined in this guide, you can successfully divide your rhubarb and ensure the continued growth and abundance of this delicious vegetable. Remember to choose the right time, select healthy plants, and provide adequate care during the division process. With a little effort and attention, your rhubarb patch will thrive, rewarding you with bountiful harvests for years to come.

Remember, division should be done every 4 to 5 years, so keep an eye on your rhubarb plants and be proactive in maintaining their health. Enjoy the process of dividing rhubarb and the benefits it brings to your garden and kitchen. Happy gardening!