When to Plant Potted Calla Lilies Outside

Potted calla lilies are a popular houseplant due to their attractive foliage and striking flowers. However, to truly appreciate and enjoy these plants, they should be planted outside. Calla lilies are hardy in USDA zones 8 through 10 and can be grown as perennials in these areas. Here's when to plant potted calla lilies outside.

Spring or Fall Planting

Calla lilies can be planted outside in either spring or fall, depending on your location and climate. If you live in an area with mild winters and hot summers, you can plant calla lilies in the fall. This will allow the bulbs to establish themselves and bloom in the spring. However, if you live in an area with harsh winters, it's best to plant the calla lilies in the spring after the last frost has passed. This will give the bulbs time to grow and strengthen before the harsh winter weather sets in.

Soil and Light Requirements

Calla lilies prefer well-draining soil that's rich in organic matter. If you're planting in heavy soil, mix in some compost or peat moss to improve drainage. These plants also prefer full sun to partial shade. However, in areas with hot summers, providing some afternoon shade can help prevent the calla lilies from getting too hot and dry.

Planting Tips

When planting your potted calla lilies outside, you'll want to dig a hole that's slightly deeper than the pot they're in. Remove the plant from the pot and gently loosen the roots. Place the plant in the hole and backfill with soil, being careful to not bury the stem too deep. Water the plant well after planting, and continue to water regularly to keep the soil moist but not waterlogged.

Caring for Calla Lilies

Once your calla lilies are planted outside, they'll require some basic care to thrive. Water regularly to keep the soil moist, but not saturated as too much water can cause the bulbs to rot. Fertilize once a month during the growing season with a balanced, all-purpose fertilizer. Deadhead spent blooms to encourage more flowers to form.

Calla lilies can be susceptible to pests and diseases, including spider mites and root rot. Keep an eye on your plants and treat any problems as quickly as possible to prevent them from spreading.

Conclusion

If you've been enjoying your potted calla lilies indoors, it's time to give them a chance to thrive in the great outdoors. With the right planting and care, your calla lilies will reward you with beautiful flowers year after year.