The Oyster Plant ( Acanthus mollis ) was a highly regarded plant in Ancient times. In fact , if you look at the Corinthian columns which are part of the architecture of many famous ancient buildings in Rome and Greece, Acanthus leaves can be seen decorating the top of the columns. Some varieties of Acanthus are very useful for herbal remedies, have many medicinal uses, and is used in Chinese medicine. These days, we know the plant as a great addition to any garden. It has long spikes of White, Oyster-like flowers, and large, glossy/shiny leaves. it grows to about 1 metre tall, and forms a clump. When the clump gets bigger, you can divide it and get more plants. Acanthus will grow in either sun or shade, but don't let the soil get dry, or it will wilt badly. The flowers produce sweet nectar, and will attract a lot of Butterflies, moths, and other nectar feeders. The photos are from local gardens here in Sydney.