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Ranunculus, with their vibrant blooms and lush foliage, are a favorite among gardeners. However, as they age, their flowering may diminish, and they can become crowded. Rejuvenating older ranunculus by dividing and caring for them properly can restore their vitality and ensure a beautiful display year after year.
Understanding Ranunculus Growth Cycles
Ranunculus are perennial plants that grow from tuberous roots. They typically bloom in spring or early summer. After flowering, the plant enters a dormant period, usually in late summer or fall. Proper care during this time is essential for successful division and rejuvenation.
When to Divide Ranunculus
The best time to divide ranunculus is during their dormant phase, usually in late summer or early fall, after the foliage has died back. Dividing too early or too late can stress the plant and reduce flowering in the following season.
Signs That Your Ranunculus Needs Dividing
- The plant is overcrowded and has fewer flowers.
- The tubers are crowded and difficult to separate.
- Foliage appears sparse or weak.
- There is a noticeable decline in overall plant vigor.
Steps for Dividing Ranunculus
Dividing ranunculus involves carefully separating the tubers to promote healthy growth. Follow these steps for successful division:
- Dig up the entire clump of ranunculus tubers carefully, using a garden fork or spade.
- Gently shake off excess soil to expose the tubers.
- Use a clean, sharp knife or garden shears to divide the tubers into sections, ensuring each has at least one eye or growth point.
- Inspect the tubers for any signs of rot or disease, and discard any damaged parts.
- Allow the divided tubers to dry in a shaded, well-ventilated area for a day or two.
Replanting and Care After Division
Proper replanting and care are crucial to ensure the success of your divided ranunculus. Follow these guidelines:
- Choose a well-draining location with full sun to partial shade.
- Prepare the soil by mixing in organic matter or compost to improve fertility and drainage.
- Plant the tubers about 2-3 inches deep, with the eyes facing upward.
- Space the tubers 4-6 inches apart to allow for growth.
- Water thoroughly after planting, then maintain consistent moisture without overwatering.
- Apply a balanced fertilizer in early spring for vigorous growth.
Additional Tips for Rejuvenation
To further support your ranunculus’ health and flowering potential:
- Remove spent flowers regularly to encourage new blooms.
- Mulch around the plants to retain moisture and suppress weeds.
- Avoid disturbing the tubers during the active growing season.
- In colder climates, lift and store tubers indoors during winter to prevent frost damage.
Conclusion
Dividing and caring for older ranunculus plants can breathe new life into them, resulting in a more vigorous and floriferous display. With proper timing, careful division, and attentive care, your ranunculus will reward you with stunning blooms season after season.