Calla Lily Seeds: A Comprehensive Guide to Planting and Growing

Introduction

Calla lilies, with their elegant trumpet-shaped blooms and glossy foliage, are a graceful addition to any garden. While they are often propagated through bulbs or rhizomes, growing calla lilies from seed is an exciting and rewarding endeavor. This detailed guide will provide you with all the information and techniques you need to successfully plant and grow calla lily seeds.

Preparing the Seeds

Calla lily seeds are small and dust-like. They require specialized care to germinate and grow successfully:

Scarification

Scarification is the process of weakening the seed coat to improve germination. Gently rub the seeds on sandpaper or a nail file to create small nicks or scratches.

Planting the Seeds

• Planting Time: Sow calla lily seeds indoors 8-10 weeks before the last frost date.
• Soil Mix: Use a well-draining seed-starting mix.
• Planting Depth: Sprinkle the seeds evenly over the soil surface and gently press them down.
• Light: Calla lily seeds require light to germinate. Provide bottom heat or place the pots under grow lights.
• Moisture: Keep the soil consistently moist but not soggy.

Germination and Care

Germination typically takes 14-21 days. Once the seedlings emerge:

Light

Gradually increase the amount of light the seedlings receive.

Temperature

Maintain temperatures between 65-70°F (18-21°C).

Water

Water seedlings regularly, avoiding overwatering.

Fertilizer

Fertilize seedlings lightly once they have developed 3-4 leaves.

Transplanting

• Hardening Off: Gradually expose seedlings to outdoor conditions for a week before transplanting.
• Transplanting Time: Transplant seedlings outdoors after the last frost date and when they have developed at least 6 leaves.
• Spacing: Plant calla lilies 12-18 inches apart in well-drained soil.

Growth and Care

Calla lilies are relatively easy to care for:

Water

Water regularly, especially during hot, dry weather.

Fertilizer

Fertilize monthly with a balanced fertilizer.

Sunlight

Calla lilies prefer partial shade but will tolerate full sun with adequate watering.

Pests and Diseases

Calla lilies are generally pest-free, but aphids and thrips can sometimes infest them. Treat with insecticidal soap or neem oil.

Harvesting and Storage

Calla lilies bloom from summer to early fall. The flowers can be cut and used in arrangements. To harvest the seeds:

• Allow the seed pods to turn brown and dry on the plant.
• Collect the seeds by shaking the pods or cutting them open.
• Dry the seeds in a cool, dark place for several weeks.
• Store the seeds in a sealed container in a refrigerator for up to 5 years.

Conclusion

Growing calla lilies from seed is a rewarding experience. By following these steps and providing the necessary care, you can enjoy the beauty and elegance of these captivating flowers in your garden for years to come.