How to grow zantedeschia

Written by pamela gardapee
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How to grow zantedeschia
Calla lilies can be grown indoors or outdoors. (miteemaus5/iStock/Getty Images)

Zantedeschia -- also known as the calla or arum lily -- is native to South Africa where the temperatures are typically warm. Calla lilies can be grown in gardens in sheltered, sunny spots in the south of the UK or in containers in any other locations. Zantedeschia plants grow to around 46 cm (18 inches) tall and have trumpet-shaped flowers ranging in colours from white to pink to orange. Proper care is needed to keep the plants healthy, whether growing in gardens or pots.

Skill level:

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Things you need

  • Container with drainage holes
  • Potting soil
  • Fertiliser
  • Peat moss
  • Brown paper bag

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  1. 1

    Place the zantedeschia in an outdoor or indoor location where it will receive at least six hours of morning sunlight or partial sun and shade. Locations should be free of strong winds. Plants placed in hot afternoon sun can sustain leaf burn.

  2. 2

    Water the plant when the soil surface is dry. Zantedeschia plants will not tolerate drought. The soil must be kept moist, but not wet, especially during the summer.

  3. 3

    Use 10-10-10 nitrogen-phosphate-potassium slow-release granular fertiliser once during spring. Use the correct amount of fertiliser as per the directions on the packet for the type of container or garden area size.

  4. 4

    Stop watering the garden plant in November. Allow the plant to rest four days after the last watering. Remove the bulbs from the soil and gently shake off the dirt. Place the bulbs in a paper bag covered with peat moss. Place the bag in a dry, dark area until spring.

  5. 5

    Repot the container zantedeschia in November with new soil. Plant the bulb so it is twice its size deep. Add water every two weeks until spring, then water once a week or as needed to keep the soil moist.

  6. 6

    Plant the outdoor bulbs in spring after the last chance of frost has passed. Plant the bulb in the ground at a depth twice its size. If the bulb is 5 cm (2 inches) long, plant the bulb 10 cm (4 inches) in the ground. Water when needed to keep the soil moist if rain is not imminent.

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