Leptospermum 'Wiri Susan’ is a compact, evergreen shrub developed in New Zealand and admired for its vibrant floral display and fine-textured foliage forming a dense, bushy habit. The plant features small, narrow, dark green leaves and produces masses of bright magenta-pink, single flowers in late winter through spring, often attracting bees and other pollinators and is widely used in borders, native gardens, low screening, and coastal plantings due to its bold colour, toughness, and suitability for New Zealand conditions.