The ideal time to transplant calla lilies is in the spring season, specifically after the threat of frost has passed and the soil has started to warm up. This is typically when temperatures have consistently reached a minimum of 50 degrees Fahrenheit (10 degrees Celsius) during the day and there is no longer a risk of freezing temperatures at night.
Transplanting calla lilies during this time allows them to establish their root systems and adapt to their new surroundings before the hot summer months arrive. It also gives them ample time to settle in and prepare for the blooming season, which usually occurs in late spring or early summer.
When selecting a location for transplanting calla lilies, it is important to choose an area with organically rich soil that can retain moisture well. Callas prefer soil that is well-draining but also holds moisture, as they thrive in low, moist areas. This is in contrast to many other rhizomes that would suffer from root rot in such conditions.
If your garden or landscape has a low-lying area that tends to retain moisture or where water tends to collect, it can be an ideal spot for calla lilies. These plants are well-suited to bog gardens or near water features, as long as the soil is not constantly saturated.
In terms of the transplanting process, begin by preparing the new planting location. Dig a hole that is deep enough to accommodate the entire rhizome and its roots, typically around 4 to 6 inches deep. Make sure the hole is wide enough to comfortably fit the rhizome and allow for some space around it.
Next, carefully lift the calla lily rhizome from its current location. Gently loosen the soil around the rhizome and lift it out, taking care not to damage the roots. If there are multiple rhizomes, you can separate them if desired, as long as each one has a sufficient number of healthy roots.
Place the rhizome into the prepared hole, ensuring that the top is level with the soil surface or slightly above. Backfill the hole with soil, gently firming it around the rhizome to provide stability. Water the newly transplanted calla lily thoroughly to settle the soil and provide moisture.
After transplanting, it is important to maintain consistent moisture levels for the calla lilies, especially during the initial establishment period. Regularly check the soil moisture and water as needed, ensuring that the soil remains evenly moist but not waterlogged.
Transplanting calla lilies in the spring after the threat of frost has passed and the soil has warmed up is the best time. Choose a location with organically rich soil that holds moisture well, and consider low, moist areas where other rhizomes may suffer from root rot. By following these guidelines and providing proper care, your calla lilies should thrive and produce beautiful blooms.
