Unveiling the Enchanting World of Calla Picasso Lilies: A Comprehensive Guide

Botanical Overview

The calla picasso lily (Zantedeschia picasso), also known as the painted calla or picasso calla, is a captivating member of the Araceae family. Native to South Africa, this herbaceous perennial displays an array of vibrant colors and captivating flower forms that resemble miniature calla lilies.

Calla picasso lilies typically reach a height of 2-3 feet and boast sword-shaped leaves with smooth edges. The leaves emerge from a tuberous root system and can be green, purple, or variegated in color. The flowers, which bloom in late spring to early summer, are trumpet-shaped and come in a kaleidoscope of hues, including white, yellow, pink, purple, and orange.

Cultivation and Care

Calla picasso lilies thrive in well-drained, moist soil and prefer a sunny to partially shaded location. They are relatively easy to grow and can even tolerate some neglect, making them a great choice for both novice and experienced gardeners.

Soil and Drainage

These lilies prefer soil that is rich in organic matter and drains well. To improve drainage, add compost or peat moss to the soil before planting. A pH level between 6.0 and 6.5 is ideal for optimal growth.

Sunlight and Temperature

Calla picasso lilies prefer to receive at least 6 hours of sunlight per day, although they can tolerate partial shade. In hotter climates, afternoon shade can help prevent the leaves from scorching.

Watering

These lilies thrive in moist soil, but avoid overwatering. Water the plants deeply and allow the top inch of soil to dry out before watering again. During hot, dry weather, you may need to water more frequently.

Varieties and Uses

Varieties

• ‘Forest Fire’: This variety features striking yellow and red flowers with a dark purple spathe.
• ‘Golden Symphony’: Boasts vibrant golden yellow flowers with a chartreuse spathe.
• ‘Picasso’s Pride’: Displays a stunning array of colors, including white, pink, yellow, and purple.
• ‘Song of India’: This variety produces large, white trumpet-shaped flowers with a pale yellow spathe.
• ‘Stardust’: Features a delicate white bloom with a deep purple spathe that is streaked with white.

Uses

Calla picasso lilies are highly versatile plants that can be used in a variety of ways.

• Garden Borders: Their vibrant colors and bold foliage make them a perfect choice for garden borders and mixed containers.
• Cut Flowers: Their elegant flower forms and long vase life make picasso lilies ideal for cut flower arrangements.
• Water Gardens: Some varieties, such as ‘Song of India’, are tolerant of standing water and can be grown in water gardens.
• Focal Point: The striking colors and unusual shapes of calla picasso lilies make them a captivating focal point in any garden.

Diseases and Pests

Calla picasso lilies are generally disease-resistant, but they can be susceptible to a few common pests and diseases.

Pests

• Aphids: These tiny, green insects feed on plant sap, causing leaves to curl and distort.
• Thrips: These slender, brown insects feed on leaf tissue, leaving behind a silvery sheen.
• Spider Mites: These microscopic pests spin webs on the undersides of leaves and feed on plant juices.

Diseases

• Rhizome Rot: This fungal disease affects the roots and rhizomes of lilies, causing them to rot and wilt.
• Botrytis Blight: This fungal disease causes gray or brown spots on leaves and flowers, which can lead to plant death.
• Fusarium Wilt: This fungal disease causes the vascular system of the plant to become blocked, leading to wilting and dieback.

Prevention and Control

To prevent and control pests and diseases in calla picasso lilies, practice good garden hygiene and inspect plants regularly. Remove diseased or infested plants promptly and dispose of them in the trash. Neem oil, horticultural soap, and other organic insecticides can be used to treat insect infestations. Fungicides can be used to control fungal diseases.

Tips for Growing Calla Picasso Lilies

• Plant the tubers pointy side up with the eye of the tuber facing sideways.
• Water the plants deeply after planting to settle the soil around the roots.
• Fertilize the plants every few weeks with a balanced liquid fertilizer.
• Deadhead spent blooms to encourage continued flowering.
• Protect the plants from frost and wind by planting them in a sheltered location or covering them with a cloche.

Conclusion

Calla picasso lilies are a vibrant and versatile addition to any garden. With their striking colors, unique flower forms, and ease of care, these lilies are sure to add a touch of elegance and charm to your landscape. Whether you’re a novice gardener or an experienced horticulturist, calla picasso lilies are a rewarding plant to grow and enjoy.