What To Know
- Place the bulb in the hole with the pointed end facing up and the roots spread out.
- Separate the individual bulbs and replant them in the same location or in new areas.
- Store the bulbs in a cool, dry place, such as a basement or garage.
Calla lilies, with their graceful trumpet-shaped blooms and vibrant colors, are a captivating addition to any garden or home. To maintain their beauty and health, proper care is essential. This comprehensive guide will provide you with all the necessary knowledge on how to maintain calla lilies, ensuring their thriving presence in your surroundings.
Planting and Soil Preparation
Planting:
- Plant calla lilies in well-drained soil rich in organic matter.
- Choose a location that receives full to partial sun, with protection from strong winds.
- Dig a hole twice the width of the bulb and deep enough to accommodate its height.
- Place the bulb in the hole with the pointed end facing up and the roots spread out.
- Backfill the hole with soil, gently firming it around the bulb.
Soil Preparation:
- Amend the soil with compost or well-rotted manure to improve drainage and fertility.
- The soil should have a pH between 6.0 and 6.5.
- If your soil is heavy or clay-like, consider adding sand or perlite to enhance drainage.
Watering and Fertilizing
Watering:
- Water calla lilies regularly, especially during hot and dry weather.
- Allow the soil to dry slightly between waterings to prevent root rot.
- Water deeply, soaking the soil around the roots.
- Avoid overwatering, as this can lead to bulb rot.
Fertilizing:
- Fertilize calla lilies every 2-3 weeks during the growing season.
- Use a balanced fertilizer diluted to half strength.
- Avoid using fertilizers with high nitrogen content, as this can promote foliage growth at the expense of blooming.
Mulching and Dividing
Mulching:
- Spread a layer of organic mulch, such as shredded leaves or compost, around the calla lilies.
- Mulch helps retain moisture, suppress weeds, and regulate soil temperature.
Dividing:
- Divide calla lilies every 3-4 years to prevent overcrowding and promote blooming.
- Dig up the clump in early spring or fall.
- Separate the individual bulbs and replant them in the same location or in new areas.
Pest and Disease Control
Common Pests:
- Aphids: Treat with insecticidal soap or neem oil.
- Thrips: Use a systemic insecticide.
- Slugs and snails: Apply slug bait or create physical barriers.
Common Diseases:
- Root rot: Caused by overwatering or poor drainage. Treat by improving drainage and removing infected bulbs.
- Botrytis blight: Affects flowers and leaves. Prevent by providing good air circulation and avoiding overhead watering.
Overwintering Calla Lilies
In Cold Climates:
- Dig up the bulbs in fall after the foliage has died back.
- Store the bulbs in a cool, dry place, such as a basement or garage.
- Keep the bulbs slightly moist but not wet.
In Mild Climates:
- Calla lilies can be left in the ground in mild climates.
- Protect the bulbs from frost by covering them with a layer of mulch.
Troubleshooting Common Problems
- Yellowing leaves: Overwatering or nutrient deficiency.
- Brown leaf tips: Underwatering or low humidity.
- Lack of blooms: Insufficient sunlight or over-fertilization.
- Bulb rot: Overwatering or poor drainage.
FAQs
Q: How often should I water calla lilies?
A: Water calla lilies regularly, allowing the soil to dry slightly between waterings.
Q: What type of fertilizer is best for calla lilies?
A: Use a balanced fertilizer diluted to half strength. Avoid high nitrogen fertilizers.
Q: How do I divide calla lilies?
A: Divide calla lilies every 3-4 years by separating the individual bulbs and replanting them.
Q: How can I prevent root rot in calla lilies?
A: Improve soil drainage and avoid overwatering.
Q: What causes yellowing leaves in calla lilies?
A: Yellowing leaves can be caused by overwatering or nutrient deficiency.
