Potted calla lilies typically last from several weeks to a few months when grown indoors or in containers, provided they receive suitable care such as well-draining soil, adequate sunlight, and regular watering

. The blooming period for calla lilies can last from about 3 weeks up to 8 weeks, depending on the variety and growing conditions

. As perennial plants, calla lilies can live and bloom for several years- generally between 3 to 10 years-if properly cared for and grown in appropriate environments

. However, individual flowers on the plant last only about one to two weeks each

. To maximize the lifespan of potted calla lilies:

• Provide bright, indirect light and maintain temperatures between 60°F and 80°F (16°C to 27°C)

• Keep the soil consistently moist but well-drained to avoid root rot

• Fertilize lightly during the growing season to support blooming

• Allow the plant to go dormant in winter by reducing watering and placing it in a cooler, darker area for 2-3 months

• After dormancy, resume watering and bring the plant back to light to encourage new growth

In summary, while the flowers last about 1-2 weeks, potted calla lilies themselves can bloom for several weeks to months and potentially live for multiple years with proper care