Xanthorrhoea quadrangulata, commonly known as Grasstree, is an evergreen perennial native to the sclerophyll forests and coastal heathlands of South Australia. It can reach heights of 3-5 feet (0.9-1.5 meters) with an equal spread, and features a distinctive trunk topped with a dense crown of narrow, grass-like leaves. The Grasstree is known for its unique, spear-like flower spikes that can rise 3-6 feet (0.9-1.8 meters) above the foliage, bearing numerous small, creamy-white flowers during spring and summer. These flowers are quite showy and attract a variety of pollinators.

The Grasstree is valued for its drought tolerance and architectural form, making it a striking feature in xeriscapes, rock gardens, and native plantings. It is also used as a focal point in modern landscape designs. This plant requires minimal maintenance once established, thriving in full sun and well-drained soils. It is adapted to survive in nutrient-poor conditions and is highly fire-resistant, often being one of the first species to regenerate after a bushfire. While generally disease-free, it can be susceptible to root rot if overwatered or planted in poorly drained soils. The Grasstree is slow-growing, which should be considered when planning a garden design.CC BY-SA 4.0