Banksia serrata, commonly known as Old Man Banksia, is an evergreen shrub or small tree native to Eastern Australia, particularly found in coastal heathlands, forests, and woodlands. It typically grows to a height of 9-45 feet (2.7-13.7 meters) and a width of 6-12 feet (1.8-3.6 meters). The species is characterized by its gnarled, twisted appearance and rough, serrated leaves. It produces cylindrical inflorescences composed of hundreds of tiny flowers, primarily in shades of green, brown, cream, and yellow, during spring and summer. These flowers are not only showy but also attract a variety of pollinators, including birds and bees. The bark is deeply furrowed and adds to the plant’s distinctive, rugged look.

Old Man Banksia is valued for its unique appearance, with its interesting foliage and striking flower spikes making it a focal point in gardens. It is used in a variety of settings, including coastal plantings, as a feature tree, and in native gardens. It is also popular for use in bonsai. Banksia serrata is adapted to nutrient-poor soils and is relatively easy to maintain, requiring minimal watering once established. It prefers well-drained soils, ideally sandy with a pH from 5.5 to 7.5, and thrives in full sun to part shade. While it can be grown from seed, which requires heat treatment to simulate the effects of a bushfire, propagation from cuttings can result in earlier flowering, sometimes within two years. However, gardeners should be aware that it may take several years for seed-grown plants to flower. Summer watering can promote growth, but care should be taken to avoid overwatering and ensure proper drainage to prevent root rot.CC BY-SA 4.0