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Calla lilies are elegant and versatile plants that can add a touch of sophistication to any garden or floral arrangement. To keep them healthy and thriving, it’s important to know the right time to divide their rhizomes. Proper timing ensures vigorous growth and abundant blooms year after year.
Understanding Calla Lily Growth Cycles
Calla lilies are perennial plants that grow from rhizomes—swollen underground stems that store nutrients. They typically bloom in late spring to early summer, depending on the climate. Recognizing their growth patterns helps determine the optimal time for division.
When Is the Best Season to Divide Calla Lilies?
The ideal time to divide calla lilies is during their dormant period or just before they begin active growth. This usually occurs in early spring or late fall, depending on your local climate. Dividing during these times minimizes stress and encourages healthy new growth.
Spring Division
In regions with cold winters, early spring is the best time to divide calla lilies. As the weather warms and new shoots emerge, you can carefully dig up the rhizomes, divide them, and replant. This timing allows the plants to establish roots before the growing season.
Fall Division
In warmer climates where calla lilies grow year-round, late fall after the plant has finished blooming is suitable for division. Wait until the foliage begins to die back naturally, then dig up and divide the rhizomes. Store them in a cool, dry place if you are in a region with harsh winters.
Steps for Dividing Calla Lilies
- Carefully dig around the plant with a garden fork or spade.
- Lift the rhizome cluster from the soil.
- Gently clean off excess soil to inspect the rhizomes.
- Use a sharp knife to divide the rhizomes into sections, each with at least one growth point or eye.
- Allow the cut sections to dry for a day or two to prevent rot.
- Plant the divided rhizomes at the same depth as the original, about 2-3 inches deep.
- Water well and mulch to retain moisture.
Dividing calla lilies at the right time ensures healthy growth and vibrant blooms. With proper care, your plants will reward you with stunning flowers season after season.