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Arum Lily

Arum Lily
Photo: Lorna Rose
Invasive Plant
Arum Lily
Zantedeschia aethiopica

This white lily with large spathes is widely used as a cut flower. However, the plants of the Arum Lily will engulf gutters, streams, waterways and wetland bogs. It is now a widespread environmental weed. The green form called 'Green Goddess' is also invasive and can be found clogging up natural waterways.



  • These plants produce prolific amounts of seed that wash down gutters and streams and readily germinate. Birds and small mammals also disperse the seeds through their droppings. These plants produce several small rhizomes (roots) that are easily spread in contaminated soil. Any moist soil will be quickly infiltrated.

Although these are popular cut flowers, the use of this plant must be discouraged for the home garden. Its spread must be stopped.

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Alternative Plants

Bird of Paradise
Photo: Macbird Floraprint
Alternative Plant Bird of Paradise
Strelitzia reginae
Trees and Shrubs

This South African native is a member of the banana family. An evergreen perennial that will reach 1.5 to 2 m in most situations. It is grown for its spectacular flowers and used all over the world for cut flower arrangements. It requires full-sun to partshade, warm temperatures and is extremely drought tolerant. Keep them crowded in pots for maximum number of blooms.

Calla Lilies
Photo: Macbird Floraprint
Alternative Plant Calla Lilies
Zantedeschia elliottiana and rehmannii
Bulbous Plants

Though closely related to the Arum Lily, they are not regarded as invasive. Calla Lilies are available in a wonderful range of colours of pink, cream and burgundy to purple-black. With care in the selection of growing position and cultivation, they will provide a wonderful show of flowers in the garden or in containers. When picked as cut flowers for a vase or bouquet Calla's make a wonderful and artistic statement.

Purple Flag Iris
Photo: Macbird Floraprint
Alternative Plant Purple Flag Iris
Patersonia sericea

A small plant with tufts of upright, grass-like leaves. It flowers for long periods during late spring to summer with purple, pale pink, white or blue three-petalled flowers. Use as border plants in a cottage garden, in rockeries or amongst dwarf shrubs in a native garden. Suited for mass planting in semi-shade to fullsun. Mulch well and don't allow the roots to dry out

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