Agapanthus was introduced as a garden plant but it naturalises and spreads easily in New Zealand, tolerating a wide range of environmental conditions. In the wild it forms dense clumps that exclude other species.
Agapanthus (Agapanthus praecox) is a weed when it spreads into the wild from gardens. It was introduced because of its attractive clumps of long leathery green leaves and purple, blue or white stalked flowers. It is easy to grow and hardy, but this also makes it weedy in the wild.
Agapanthus forms dense clumps with rhizomatous roots that make it difficult to eradicate. It is a prolific seed producer and spreads easily.
There are 3 options for control of agapanthus depending on the situation:
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