Arum Lily Purple: A Comprehensive Guide to Care and Cultivation

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Introduction

Arum lilies, also known as calla lilies, are beautiful plants that add a touch of elegance to any garden. They are native to South Africa and belong to the Araceae family. With their large, showy flowers and vibrant foliage, arum lilies are a popular choice for both gardeners and landscapers. This comprehensive guide will provide you with all the information you need to care for and cultivate your own arum lilies, specifically the purple variety.

Characteristics of Arum Lily Purple

  • Size: Typically grow to a height of 2-3 feet (60-90 cm)
  • Flower color: Purple to deep purple
  • Flower shape: Trumpet-shaped or funnel-shaped
  • Flower size: 4-6 inches (10-15 cm) in diameter
  • Leaves: Large, heart-shaped leaves
  • Leaf color: Dark green
  • Bloom time: Summer
  • Toxicity: All parts of the plant are toxic and should not be ingested

Cultivation of Arum Lily Purple

Location

Arum lilies prefer well-drained soil that is rich in organic matter. They can tolerate full sun to partial shade, but they will produce the most flowers in full sun. In colder climates, they should be planted in a sheltered location protected from wind and frost.

Planting

Plant arum lilies when the soil temperature is above 55°F (13°C). Dig a hole that is twice the width of the root ball and just as deep. Amend the soil with compost or manure to improve drainage and fertility. Place the arum lily in the hole and fill it with soil, pressing down gently to remove any air pockets. Water thoroughly after planting.

Watering

Arum lilies need to be watered regularly, especially during hot weather. Allow the soil to dry out slightly between watering. Overwatering can lead to root rot, so it is important to avoid soggy soil.

Fertilizing

Fertilize arum lilies monthly with a balanced fertilizer. A 10-10-10 fertilizer is a good option. Fertilizing will help to promote healthy growth and flowering.

Mulching

Mulching around arum lilies will help to retain moisture, suppress weeds, and regulate soil temperature. Use organic mulch, such as compost or bark, and apply it to a depth of 2-3 inches (5-7.5 cm).

Care of Arum Lily Purple

Pruning

Arum lilies only need to be pruned when they are finished blooming. Remove the spent flowers and any yellowing or damaged leaves. This will help to promote new growth and flowering.

Dividing

Arum lilies can be divided every 3-4 years to propagate new plants. Dig up the clump of arum lilies and separate them into individual plants. Replant the divisions immediately in well-prepared soil.

Pests and Diseases

Arum lilies are relatively pest-free and disease-resistant. However, they can be susceptible to aphids, spider mites, and snails. Treat infestations promptly with appropriate pesticides or insecticidal soap.

Toxicity

As mentioned earlier, all parts of the arum lily plant are toxic and can cause skin irritation, nausea, and vomiting if ingested. Avoid handling the plant with bare hands and wear gloves when gardening.

Varieties of Arum Lily Purple

In addition to the standard purple arum lily, there are several other cultivars with different shades of purple flowers:

  • ‘Black Magic’: Deep purple flowers with a black throat
  • ‘Dark Star’: Almost black flowers with a purple hue
  • ‘Odyssey’: Trumpet-shaped flowers in a deep lavender color
  • ‘Picasso’: Splashed with white or pink on the flowers
  • ‘Raven’: Nearly black flowers
  • ‘Violet Beauty’: Soft violet flowers

Companion Plants

Here are some companion plants that grow well with arum lilies:

  • Hostas
  • Liriope
  • Ferns
  • Astilbes
  • Cannas

Conclusion

Arum lilies are beautiful and easy-to-care-for plants that add a touch of elegance and color to any garden. By following the care and cultivation tips outlined in this guide, you can enjoy the beauty of arum lilies in your garden for years to come.

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