Is there a difference between lilies and calla lilies?

There is indeed a difference between lilies and calla lilies. While both are beautiful flowering plants, they belong to different botanical families and have distinct characteristics.

1. Taxonomy and Family:
Lilies, scientifically known as Lilium, belong to the Liliaceae family. They are true lilies and are part of a large genus with over 100 species. Calla lilies, on the other hand, belong to the family Araceae and are scientifically classified under the genus Zantedeschia. Despite their common name, calla lilies are not true lilies.

2. Appearance:
Lilies and calla lilies differ in their appearance as well. Lilies typically have tall stems with large, showy flowers at the top. The flowers can come in various colors, including white, yellow, pink, red, and orange. They have six petals arranged in a symmetrical pattern.

Calla lilies, on the other hand, have a more unique form. Their flowers are a modified leaf called a spathe, which wraps around a central finger-like structure called a spadix. The spathe is usually white, but there are also varieties with pink, yellow, or purple spathes. The spadix is often yellow or green. The overall shape of calla lilies is often described as elegant and trumpet-like.

3. Growth Habit:
Lilies and calla lilies also differ in their growth habits. Lilies are perennial plants that grow from bulbs. They can reach varying heights, depending on the species and cultivar, ranging from a few inches to several feet. Lilies typically bloom during summer, and their foliage dies back in winter, only to regrow the following year.

Calla lilies, on the other hand, grow from rhizomes, which are tuber-like structures. They are not winter hardy in colder climates and need to be dug up and stored indoors during winter. In regions with mild winters, calla lilies may survive and continue to grow without requiring digging up.

4. Cultural Requirements:
Both lilies and calla lilies have specific cultural requirements. Lilies prefer well-drained soil and full sun to partial shade. They benefit from regular watering and appreciate a layer of mulch to conserve moisture. Lilies are generally hardy and can withstand colder temperatures, depending on the species.

Calla lilies, on the other hand, prefer moist soil and partial shade. They can tolerate full sun but may require more frequent watering in hot, sunny conditions. In areas with cold winters, calla lilies need to be dug up and stored indoors during the dormant period.

While lilies and calla lilies share some similarities as flowering plants, they belong to different botanical families, have distinct appearances, growth habits, and cultural requirements. Understanding these differences can help gardeners choose the right plant for their specific needs and growing conditions.

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Caroline Bates

Caroline is a Miami-based landscaper who specializes in drought-tolerant landscapes. She is the mother of two young children and also enjoys writing for GreenPacks.org in her spare time. Caroline takes great pride in her work, and loves being able to share her knowledge with others through her writing.