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Calla Lily Care: Everything You Need to Know

Published on
February 20, 2025
Calla Lily Care: Everything You Need to Know
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How To Plant and Grow Sunflowers

Q: How long does it take for sunflowers to bloom?

It depends on the sunflower varieties you choose. When you’re growing sunflowers from seed, most sunflower plants take 70–100 days from the time you sow the seed until sunflower heads bloom. Smaller varieties are usually fast growing and bloom earlier, while a giant sunflower takes longer.

Q: What are the best sunflowers to grow?

There are many types of sunflowers. The traditional giant sunflower can reach 12–15 feet tall, producing large seed heads packed with edible seeds. Small sunflower varieties are ideal for pots or borders. For continuous color, try succession planting with branching varieties. When deciding on sunflowers to grow, consider if you want cut flowers, acres of sunflowers, or seeds for roasting.

Q: How do I plant sunflower seeds?

To plant sunflower seeds, choose a sunny spot or use seeds in pots. Outdoors, sow sunflower seeds 6 inches apart for smaller plants or several inches apart for giants. Indoors, you can plant seeds indoors in pots and later transplant them along a fence or in beds. The best planting time is after the frost has passed.

Peace Lily Care Q&A

1. Why do peace lilies don’t bloom sometimes?

A: If your peace lily plant isn’t producing flowers, it may not be getting enough light. Peace lilies prefer bright, indirect light rather than low light if you want blooms. Try moving the plant closer to a bright window but avoid direct sunlight, which can scorch the leaves. Feeding during the growing season with a balanced houseplant fertilizer can also help keep your peace lily blooming.

2. What is the best watering schedule for peace lilies?

A: To water your peace lily correctly, wait until the top inch of soil feels dry before watering. In warmer months, your watering schedule may be once a week, while in cooler months it’s less frequent. Always use a pot with drainage holes and empty the saucer after watering to prevent the plant from sitting in water, which can cause root rot.

3. Can peace lilies grow indoors in low light?

A: Yes, peace lilies thrive indoors and are considered an easy plant to grow, even in low light. However, blooms may be fewer. For a beautiful peace lily with more flowers, place it where it gets bright light but avoid direct sunlight to keep the large leaves healthy.

Indoor Garden Ideas Q&A

Q: How do I start an indoor garden in a small space?

A: Start small by choosing easy-to-grow potted plants or herbs that thrive indoors. Use vertical space with shelves or hanging plants to maximize floor space. For limited areas like apartments or home offices, compact container gardening works best.

Q: What are the best plants to grow indoors?

A: Low-maintenance plants like peace lilies, rubber plants, trailing plants like pothos, and indoor trees such as the fiddle leaf fig are among the best indoor options. They adapt well to indirect light and are easy to care for.

Q: What are the easiest herbs to grow indoors?

A: Herbs like basil, mint, parsley, and thyme are some of the best herbs to grow indoors. They grow well on sunny windowsills or under LED grow lights, especially during the winter months when natural light is limited.

Q: Can I grow vegetables indoors?

A: Yes, indoor vegetable gardening is possible with the right setup. Leafy greens, cherry tomatoes, and radishes are great vegetables to grow indoors. Use containers with drainage holes, provide enough light (natural or LED grow lights), and water when the soil feels dry to avoid root rot.

Q: What’s the best lighting for growing plants indoors?

A: Plants that are easy to grow still need adequate lighting. If your space lacks natural light, using grow lights (especially LED grow lights) can mimic sunlight, ensuring gardening success even during darker seasons.

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Renowned for their elegant, chalice-shaped blooms and vibrant colors, calla lilies are a favorite among flower enthusiasts. Despite their exotic appearance, these versatile plants are surprisingly easy to care for, making them a perfect choice for both novice and experienced gardeners.

This comprehensive guide will walk you through every step of calla lily care, from planting to overwintering, ensuring your garden or home is graced with these stunning flowers for years to come. Whether you're drawn to their classic white varieties or prefer the bold hues of pink, yellow, or orange, this guide will equip you with the knowledge to cultivate thriving calla lilies.

Planting Calla Lilies

calla lily seedling

When to Plant:

Outdoor

The optimal time to plant Calla lily rhizomes outdoors is in spring, after the last frost has passed and the soil temperature has reached 60-65°F (15-18°C). This typically falls between April and May for most regions.

Indoor

To get a head start, you can plant rhizomes indoors 4-6 weeks before the last frost. Use pots with drainage holes and a quality mix.

Where to Plant:

Outdoor

  • Sunlight: Calla lilies thrive in full sun to partial shade. In warmer climates (zones 9-11), afternoon shade helps protect them from scorching.
  • Soil: Well-draining soil is crucial. Amend heavy clay soil with compost or perlite to improve drainage. Ideally, aim for a slightly acidic to neutral pH (6.0-6.5).
  • Spacing: Space rhizomes about 12-18 inches apart to allow for adequate growth and air circulation.

Indoor

  • Pot Size: Choose a pot that's at least 12 inches wide and deep, with drainage holes.
  • Location: Place the pot in a bright spot with indirect sunlight. A south- or east-facing window is ideal.

How to Plant (Step-by-Step)

Outdoor Planting

  1. Dig a hole about 4 inches deep and wide.
  2. Amend the soil with compost.
  3. Place the rhizome horizontally in the hole, with the growing points (smooth, rounded nubs) facing up.
  4. Cover with soil, leaving the tips slightly exposed.
  5. Water thoroughly.

In-house Planting

  1. Fill the pot with mix, leaving space at the top.
  2. Plant the rhizome about 2 inches deep, with growing points facing up.
  3. Water well.

Calla Lily Care Requirements

calla lily care planting guide infographics

Soil

Rich, well-draining soil with good moisture retention is ideal.

Water

Calla lilies love consistent moisture. Water regularly, especially during active growth. Allow the top inch of soil to dry out slightly between watering.

Temperature & Humidity

Ideal temperatures range from 65-85°F (18-29°C). They appreciate moderate humidity, so misting leaves or using a pebble tray can be beneficial.

Sunlight

Provide at least 6 hours of sunlight daily for outdoor plants. At home plants prefer bright, indirect light.

Fertilizer

Feed every 2-3 weeks during the growing season with a balanced liquid fertilizer diluted to half strength.

Maintenance Tips

repotting calla lilies maintenance

Fertilizer

Outdoor: During the growing season (spring and summer), fertilize your Calla lilies every 2-3 weeks with a balanced liquid fertilizer. Dilute the fertilizer to half the recommended strength to avoid burning the roots. As the blooming period ends, gradually reduce fertilization.

In-house: These Calla lilies benefit from monthly fertilization during their active growth period. Use a water-soluble fertilizer formulated for flowering houseplants. Again, dilute to half strength and apply after watering to prevent fertilizer burn.

Mulching

Outdoor: Apply a 2-3 inch layer of organic mulch, such as shredded bark, wood chips, or compost, around the base of the plant. Mulch helps retain moisture, suppress weed growth, and regulate soil temperature. Replenish the mulch layer as it decomposes.

Potting & Repotting

Repotting Frequency: Calla lilies generally need repotting every 2-3 years or when they become rootbound (roots fill the pot). The best time for repotting is in early spring before the new growth begins.

Repotting Process:

  • Choose a container that is 2-3 inches larger in diameter than the current pot.
  • Fill it partially with fresh, well-draining mix.
  • Gently remove the Calla lily from its old container, loosen the roots, and place it in the new one.
  • Fill the remaining space with mix, ensuring the rhizome is covered but the growing tips are exposed.
  • Water thoroughly to settle the soil.

Overwintering

Outdoor (Colder Climates): In regions with freezing temperatures, Calla lilies cannot survive the winter outdoors. Before the first frost, dig up the rhizomes, brush off excess soil, and allow them to dry for a few days. Store the rhizomes in a cool, dark, and dry place (45-50°F or 7-10°C) until spring.

Outdoor (Warmer Climates): In frost-free areas, Calla lilies can remain outdoors year-round. Simply cut back the foliage after it dies back naturally and provide less moisture during the winter dormancy period.

Indoor: These Calla lilies can be overwintered by reducing moisture and allowing the foliage to die back. Stop fertilizing during this period. Once the foliage has completely dried, you can either leave the rhizome in the pot or remove and store it in a cool, dry place until spring.

Indoor Calla Lily Care

aluminum watering can watering calla lily

Potting Mix

Well-Draining: Calla lilies are susceptible to root rot, so a well-draining mix is essential. Choose a mix formulated for flowering plants that contains ingredients like peat moss, perlite, or vermiculite to enhance drainage.

Nutrient-Rich: The mix should also be rich in organic matter to provide essential nutrients for growth and flowering. Consider adding compost or well-rotted manure to enrich the mix.

Slightly Acidic pH: Calla lilies prefer slightly acidic soil with a pH of 6.0-6.5. You can test the pH of your mix and adjust it if necessary with lime or sulfur.

Watering

Regular Irrigation: Keep the potting mix consistently moist, but not soggy. Thoroughly hydrate the plant until water drains from the bottom of the pot. Allow the top inch of soil to dry out slightly between irrigation sessions.

Reduced Irrigation in Winter: During the winter dormancy period, significantly decrease irrigation. Allow the soil to dry out more between waterings to prevent root rot.

Water Quality: Use room-temperature water, preferably filtered or rainwater, as Calla lilies can be sensitive to chemicals like chlorine and fluoride found in tap water.

Humidity

Maintain High Humidity: Calla lilies thrive in humid environments. To increase humidity indoors:

  • Misting: Mist the leaves regularly with room-temperature water.
  • Pebble Tray: Place the pot on a tray filled with pebbles and water. As the water evaporates, it creates humidity around the plant.
  • Humidifier: Use a humidifier to maintain optimal humidity levels in the room.

Dormancy

Signs of Dormancy: After flowering, the leaves of at home Calla lilies will start to yellow and eventually die back. This is a natural part of their growth cycle and indicates the onset of dormancy.

Dormancy Care:

  • Stop Fertilizing
  • Reduce Watering: Significantly reduce watering. Water just enough to prevent the rhizome from drying out completely.
  • Cool and Dark Location: Move the plant to a cool (50-60°F or 10-15°C) and dark location for 6-8 weeks.
  • Resume Care: After this period, gradually increase watering and move the plant back to a brighter location to encourage new growth.

Common Pests and Diseases

dried up calla lily inside jar with water

Pests

Aphids: These tiny insects suck sap from the plant, causing stunted growth and yellowing leaves.

  • Troubleshooting: Spray with insecticidal soap or neem oil, repeat every few days until gone. Introduce beneficial insects like ladybugs, which prey on aphids.

Spider Mites: These tiny arachnids also feed on plant sap, leaving behind a fine webbing.

  • Troubleshooting: Spray with insecticidal soap or horticultural oil. Increase humidity around the plant, as dry conditions favor spider mites.

Snails and Slugs: These slimy creatures love to munch on calla lily leaves and flowers, especially in damp conditions.

  • Troubleshooting: Handpick and remove them, especially at night when they are most active. Use barriers like copper tape, diatomaceous earth, or beer traps.

Diseases

Root Rot: This fungal disease thrives in overly wet soil, causing the roots to rot and the plant to wilt.

  • Troubleshooting: Improve drainage by adding organic matter or perlite to the soil. Avoid overwatering and allow the soil to dry out slightly between waterings. Remove and discard any infected plants.

Botrytis Blight (Gray Mold): This fungal disease causes gray mold to develop on leaves, stems, and flowers. It is more prevalent in humid conditions.

  • Troubleshooting: Remove and destroy affected plant parts. Improve air circulation by spacing plants further apart. Apply a fungicide if necessary.

Bacterial Soft Rot: This bacterial disease causes the rhizomes (underground stems) to rot, leading to plant death.

  • Troubleshooting: Avoid injuring the rhizomes during planting and discard any damaged ones. Ensure good drainage and avoid overwatering. If infection occurs, remove and destroy affected plants.

FAQs: Frequently Asked Questions

Q: How much sun do calla lilies need to thrive?

A: Calla lilies grow best in full sun to partial shade. In warmer climates, they may benefit from some afternoon shade to prevent scorching. When planting calla lilies directly in the garden, choose a location with full sun or partial sun, depending on your climate.

Q: Can calla lilies be grown in containers? If so, what are some care tips?

A: Yes, calla lilies are well-suited for container gardening. Use a well-draining mix and a pot that is at least 12 inches wide. Keep the soil moist but not soggy, and fertilize monthly during the growing season with a diluted liquid fertilizer. Deadhead spent flowers to encourage new blooms and repot every 2-3 years.

Q: How do I overwinter calla lilies in colder climates?

A: After the first frost, when the foliage begins to wilt, dig up the rhizomes and allow them to dry in a cool, dry place. Store the rhizomes in a paper bag or cardboard box in a cool (45-50°F or 7-10°C), dry place until the danger of frost has passed in spring.

Q: Are calla lilies poisonous? What precautions should I take when handling them?

A: Yes, all parts of the calla lily plant contain calcium oxalate, which may cause severe irritation and swelling in the mouth and throat if ingested. Keep calla lilies away from children and pets, and wear gloves when handling them to avoid skin irritation.

Q: What are some common problems I might encounter when growing calla lilies, and how can I address them?

A: Calla lilies can be susceptible to pests like aphids and spider mites, as well as diseases like bacterial soft rot. Regularly inspect your plants for signs of infestation or disease. If you notice any problems, treat them promptly with insecticidal soap or fungicide, following the instructions on the product label.

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