Purple calla lilies can definitely be planted outside, whether it’s in pots or directly in the ground. They are versatile plants that can be grown as houseplants all year round, as summer annuals in outdoor pots, or in the ground during the summer months. However, there are a few things to keep in mind when planting purple calla lilies outside.
Firstly, it’s important to choose the right location for your purple calla lilies. They prefer well-draining soil with plenty of organic matter, so make sure to prepare the soil before planting. If you’re planting them in pots, be sure to use a good quality potting mix that provides good drainage.
When it comes to sunlight, purple calla lilies thrive best in partial shade to full sun. They can tolerate some shade, but too much shade may result in weaker growth and fewer blooms. I personally have had success growing purple calla lilies in pots on my patio, where they receive a few hours of direct sunlight every day.
Once you have chosen the right location, it’s time to plant your purple calla lilies. If you’re planting them in the ground, dig a hole that is slightly larger than the size of the rhizome (the underground stem of the plant). Place the rhizome in the hole, making sure that the top is level with the soil surface. Backfill the hole with soil, gently firming it around the rhizome.
If you’re planting them in pots, choose a container that has drainage holes and is deep enough to accommodate the rhizome. Fill the pot with potting mix, leaving enough space for the rhizome. Place the rhizome in the pot, making sure that the top is level with the soil surface. Gently firm the soil around the rhizome to secure it in place.
Watering is crucial for the success of your purple calla lilies. They like to be kept consistently moist, but not waterlogged. During the growing season, make sure to water them regularly, especially during dry spells. However, be careful not to overwater them, as this can lead to root rot. I find it helpful to check the soil moisture regularly by sticking my finger about an inch into the soil. If it feels dry, it’s time to water.
Fertilizing your purple calla lilies can also help promote healthy growth and abundant blooms. Use a balanced, water-soluble fertilizer every 2-3 weeks during the growing season. Be sure to follow the instructions on the fertilizer packaging for the correct dosage. I have personally found that a slow-release fertilizer applied at the beginning of the growing season provides consistent nutrition for my purple calla lilies.
As the growing season comes to an end, you may need to dig up your purple calla lilies if you live in a region with cold winters. Before the first frost, carefully dig up the rhizomes, taking care not to damage them. Shake off any excess soil and allow them to dry for a few days. Once dry, you can store them in a cool, dark place (such as a basement or garage) for the winter. I like to store mine in a paper bag with some peat moss to help retain moisture.
Purple calla lilies can be planted outside in pots or in the ground. They prefer well-draining soil, partial shade to full sun, and regular watering. Fertilizing can help promote healthy growth and blooming. If you live in a cold climate, you’ll need to dig up and store the rhizomes for the winter. With proper care, your purple calla lilies can bring beauty and color to your outdoor space.
