Berberis irwinii, commonly referred to as Irwin's Barberry, is a compact evergreen shrub known for its ornamental foliage and vibrant berries. This shrub originates from New Zealand and offers year-round interest in gardens and landscapes. The glossy, leathery leaves of Berberis irwinii exhibit a rich green colour with a hint of bronze in new growth, creating a visually appealing contrast. In terms of size, Berberis irwinii typically reaches a height of around 100 to 150 centimetres (39 to 59 inches) with a similar spread, making it a relatively compact choice for various garden settings. Its dense growth habit and graceful arching branches contribute to its neat appearance.