The calla lily is an example of an old world flower that has undergone a transformation through selective cultivation. Originally white, it is now available in a rainbow of colors from palest pink and yellow to deepest purple. Miniature varieties are also popular. A native of South Africa, the calla lily is a favorite in bouquets and has a distinctive wrapped shape that is a welcome note of simplicity in the garden. It is easy to grow and can overwinter outdoors in areas that don’t experience a hard frost (zones 7 to 10). Calla lilies also make interesting and attractive houseplants that add designer appeal to a bare corner.
- Difficulty:
- Easy
Instructions
things you’ll need:
- Moist, sandy soil
Growing Calla Lilies Outdoors
- Plant calla lily tubers, which are similar to bulbs, at a depth of 4 inches in moist, porous soil in spring. Calla lilies do best when kept where the soil is loose and wet.
- Make sure that the pointed or tapering end of the tuber is facing up.
- Space plants 12 to 14 inches apart.
- Provide partial shade in areas that experience hot summers. Locations where hostas thrive are a good location for calla lilies.
- Offer plants a layer mulch to help retain moisture.
- Water tubers frequently until shoots appear.
- Divide established plants in spring.
Growing Calla Lilies Indoors
- Fill a deep, 6-inch pot with rich potting soil.
- Bury a calla lily tuber to a depth of 4 inches in the pot with the pointed end of the tuber facing upward.
- Saturate the potting soil with warm water.
- Place the pot in a warm, shady spot until the first calla lily shoots appear.
- Gradually introduce the calla lily to a sunny location. In all but the hottest areas, a western or southern exposures should provide enough light.
- Keep the pot evenly moist throughout the growing season. If regular watering is a problem, consider installing a wicking system.
Tips & Warnings
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To help retain moisture, mulch potted calla lilies with a layer of moss, marbles or pebbles.
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Calla lilies are also known as trumpet lilies.
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Calla lilies do particularly well in low lying areas near downspouts or other spots that tend to stay muddy or boggy.
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The scientific name of the calla lily is Zantedeschia and it belongs to the same botanical family as the caladium (elephant ears). Although it is commonly called a lily, it isn’t a member of the lily family.
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Calla lilies can’t tolerate freezing conditions. In cold climates, bring plants indoors to overwinter.
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Calla lilies contain calcium oxalate crystals, poisonous compounds that can be dangerous to pets, livestock or children who may accidentally ingest them.
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