Divide and Conquer: A Comprehensive Guide to Dividing Calla Lilies in Pots

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Introduction

Calla lilies, with their elegant, trumpet-shaped flowers and glossy foliage, are a popular choice for both indoor and outdoor gardens. As they grow, they can become crowded and pot-bound, leading to reduced flowering and overall decline. Dividing calla lilies is a crucial technique that allows you to rejuvenate your plants, promote healthy growth, and increase flower production.

When to Divide

The best time to divide calla lilies is during their dormant period, typically in late winter or early spring. This is when the plants are naturally less active, making them less susceptible to stress.

Materials You’ll Need

  • Sharp, clean knife or spade
  • Potting mix
  • New pots
  • Water

Step-by-Step Instructions

1. Dig Up the Plant

Gently loosen the soil around the base of the plant. Carefully lift the entire rootball out of the pot.

2. Divide the Rhizomes

Rhizomes are the thick, fleshy underground stems of calla lilies. Use a sharp knife or spade to carefully cut the rhizomes into several smaller pieces. Each piece should have at least one growing point (eye).

3. Prepare the New Pots

Fill new pots with fresh potting mix. Make sure the pots are slightly larger than the size of the rhizomes.

4. Plant the Divided Rhizomes

Plant the divided rhizomes in the new pots, with the growing point facing up. Cover them with potting mix, leaving the tops of the rhizomes slightly exposed.

5. Water Deeply

Water the newly planted rhizomes deeply. Make sure the soil is evenly moist but not soggy.

Aftercare

Keep the newly divided calla lilies in a bright, warm location with indirect sunlight. Water regularly, especially during the first few weeks until the plants are established.

Fertilizing

Fertilize your divided calla lilies every few weeks with a balanced liquid fertilizer. This will help them recover from the division process and promote healthy growth.

Table: Summary of Steps

Step Description
1 Dig up the plant
2 Divide the rhizomes
3 Prepare the new pots
4 Plant the divided rhizomes
5 Water deeply

Tips and Troubleshooting

  • Divide calla lilies every 3-5 years to prevent overcrowding and promote optimal growth.
  • When dividing, avoid cutting into the growing points of the rhizomes, as this can damage the plant.
  • If you encounter any rot or disease when dividing, remove the affected portions and discard them.
  • Keep newly divided calla lilies protected from extreme heat or cold.

Conclusion

Dividing calla lilies in pots is a simple and rewarding task that can rejuvenate your plants and keep them blooming beautifully for years to come. By following these steps and tips, you can successfully divide your calla lilies and enjoy their elegant flowers season after season.

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