For the calla lily, the life cycle begins when a seed is planted into the ground or another medium, such as a soil mix in a pot. Calla lily seeds are brown, ovular and small in size at about 1/10 inch in diameter. Each seed requires plenty of water and light to properly germinate. Without an adequate amount of water and light, the seed will not germinate.
During germination, the seed uses stored energy to grow. Once it has established itself as a seedling, the calla lily begins using its roots to draw nutrients and water from the soil. This helps the seedling grow and develop into a larger plant. This includes the development of the seeds and rhizomes of the calla lily.
Fully grown, the calla lily reaches what is known as the flowering stage. The flowers of the calla lily are small and yellow, surrounded by a large colorful leaf that is often mistaken as the actual flower. This trumpet-shaped leaf is extremely showy. It can range in color from bridal white to vivid yellow or deep plum.
Once fully developed, the calla lily will begin pollinating and fertilizing. Insects transfer the pollen from the male reproductive organs of the flower to the female reproductive organs of the flower, thus pollinating and fertilizing the flower. Once fertilized, the female organ will begin its transition from ovary to seed, which will be released as the calla lily dies off.
When the calla lily dies off will vary based on where the plant is located. Due to this fact, the calla lily is classified as an annual/perennial plant. In cooler Northern regions, the calla lily is grown as an annual. However, in warmer parts of the United States, such as Southern Florida, the calla lily can grow as a perennial.