Calla lilies are sturdy, bold plants characterised by dark and glossy leaves and striking, cupped blooms that sit on top of a long, leafless shoot. Available in white and shades of pink, purple, green and yellow, calla lilies thrive indoors as potted houseplants. Understanding how to care for potted calla lilies will help your plant thrive and your flowers stand out beautifully.
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Things you need
- Balanced liquid fertiliser
Place your potted calla lily in a spot that is just shy of full sunlight. A sunny windowsill is a great location in the cooler months.
Keep an eye on the thermometer. Calla lilies prefer the air temperature to hover around 21 degrees C (70F). Be sure to keep your potted plants away from radiators in the winter.
Water your calla lilies. Potted calla lilies need moist soil at all times -- however, you do not want to overwater your plants. Soaking wet soil can lead to the growth of a fungus rot that affects the calla lily's roots and rhizome or the underground part of the stem. Be sure to allow excess water to drain from the bottom of the flowerpot.
Use mulch. Adding mulch to your calla lily's soil mixture helps the soil retain moisture without becoming saturated. Choose mulch that is insect resistant, such as cedar, to keep the pests from eating your plant.
Feed your calla lily. Potted calla lilies need to be fed a mild solution of balanced liquid fertiliser every two weeks while they are flowering. Feed your calla lily once a month if the plant is showing signs of active growth but not flowering. If your calla lily plant has dark tips on its leaves, this might indicate you are using too much fertiliser. Cut back on the amount of fertiliser you feed it.
Enjoy your calla lily blooms. Potted calla lilies typically bloom within two to three months of being planted. The flowers usually bloom for four to six weeks.
Repot your plants. Calla lilies need to be repotted and fertilised once a year to provide them with fresh soil. Once your plant's bloom has withered, prune the dead leaves and the stem. Remove the bulb from the soil and allow it to dry out for three to four weeks. Once the shell of the bulb has hardened, repot the bulb in fertilised soil that is 5 to 10 cm (2 to 4 inches) deep.
Tips and warnings
- Consult a local garden centre or nursery to determine if there is any specific care you need to give calla lilies.
- Calla lilies contain a poisonous substance known as oxalic acid, so keep them away from children and pets.
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