Calla

Calla palustris2

Calla refers to a genus of flowering plants in the family Araceae, commonly known as calla lilies. They are not true lilies but have been given the name due to their resemblance to the lily flower. Calla lilies are known for their elegant, trumpet-shaped flowers and are popular in gardens and as cut flowers for special occasions such as weddings. The genus Calla is native to cool temperate regions of the Northern Hemisphere, in areas such as Europe, North America, and Northern Asia.

Description

Calla lilies are herbaceous perennial plants that can grow up to 1-2 feet tall. The flowers are composed of a spadix surrounded by a spathe, which is often mistaken for a petal but is actually a modified leaf. The spadix is a cylindrical structure that bears the true flowers, which are small and inconspicuous. The spathe can be white, which is the most common and popular color, but there are also varieties with pink, yellow, red, and purple spathes.

The leaves of calla lilies are large, arrow-shaped, and glossy, adding to the plant's ornamental value even when it is not in bloom. These plants prefer moist, well-drained soils and can be grown in full sun to partial shade, depending on the climate.

Cultivation and Uses

Calla lilies are widely cultivated for their beautiful flowers, which are used in bouquets and floral arrangements. They are also grown in gardens and landscapes for their aesthetic appeal. While they are perennials in their native habitat, in colder climates, they are often grown as annuals or the rhizomes are lifted and stored over winter to prevent freezing.

To successfully grow calla lilies, gardeners should plant the rhizomes in spring after the threat of frost has passed. The soil should be rich in organic matter and kept moist but not waterlogged. Mulching can help retain soil moisture and keep the roots cool.

Varieties

There are several varieties of calla lilies, each with its unique color and size. Some popular varieties include:

- Zantedeschia aethiopica: Known as the common calla lily, it features large, white spathes and is the most widely recognized variety. - Zantedeschia rehmannii: This variety has pink to violet spathes and is smaller in size. - Zantedeschia elliottiana: It is known for its bright yellow spathes.

Symbolism

Calla lilies have been associated with various symbols and meanings throughout history. They are often seen as symbols of purity, holiness, and rebirth, making them popular choices for religious ceremonies and weddings. In the language of flowers, calla lilies also represent admiration and beauty.

Potential Issues

While calla lilies are generally easy to care for, they can be susceptible to certain pests and diseases. Common issues include aphids, spider mites, and fungal diseases such as botrytis. Proper care, including adequate spacing for air circulation and avoiding overhead watering, can help minimize these problems.