Description:
The arum lily has blue green arrow shaped leaves that are sometimes white-speckled. The flowers are a white spathe that are funnel-shape with a dark purple marking at the base inside.
Other names:
Arum Lily, Calla Lily, Pig lily
Arum lilies like rich soil containing generous amounts of well-decomposed plant matter; and respond well to regular applications of compost, kraal manure or organic fertiliser.
Feed container grown arum lilies every two weeks with a balanced liquid fertiliser.
Yellow, or dead leaves, are easily removed with a sharp upward tug.
Cut the leaves short when the first frost spell hits.
Do not cut the leaves before they’ve turned completely yellow because this is the time in which your arum lily is building up its nutrient reserves for the next blooming cycle.
Arum lilies flourish in rich, well-draining loamy soil.
You can grow Zantedeschia Aethiopica indoors and outdoors, if you observe a dormancy period of at least 2 months within the year by abstaining from watering your lily.
The arum lily flourishes close to a body of water, indicating how much water it needs (semi-aquatic).
November to December
Arum lilies will only start flowering in their third or fourth year.
If your arum lily isn’t blooming, the problem may be a lack of sunlight. When moving your lily to a sunnier spot, ensure that the new location’s temperature is the same as the old location.
The colourful part of the plant which we refer to as the flower is actually a large modified leaf wrapped around a central finger-like stem, which carries the minute but densely congested flowers.
The flowers are followed by green berries which ripen to orange.
Propagate arum lilies by splitting the tubers in the spring before there is a lot of top growth.
You can cut larger clumps with a sharp spade and divide them into smaller sections ensuring that each section has a visible bud.
Harvest the fruit in the summer when they have turned yellowish and soft. Remove the pulp and allow the seeds to dry before storing them and sowing them in spring.
For planting and transplanting instructions, see care section.
Arum lilies are relatively pest free but keep an eye out for slugs and snails.
Caterpillars and hawk moth caterpillars feed on young leaves at the start of the growing season which may cause the plant to appear leafless.
If grown in a sheltered environment or in a greenhouse, they may also suffer from aphid, red spider mite or white fly damage.
The rhizomes and bulbs of arum lilies are also susceptible to soft rot if humidity and temperatures are high or nitrogen levels in the soil are high.
The leaves and flowers of arum lilies are poisonous and causes kidney failure in cats. Prevent pets and children from ingesting the plant.