Backhousia citriodora, commonly known as Lemon Myrtle, is an evergreen shrub or small tree native to the subtropical rainforests of central and southeastern Queensland, Australia. It typically grows to 6 meters (19+1⁄2 feet) in height but can be smaller in cultivation. The plant features a dense canopy with lance-shaped, glossy green leaves that emit a strong lemon scent when crushed. Lemon Myrtle blooms with clusters of creamy-white flowers, each 5–7 mm (3⁄16–1⁄4 inch) in diameter, from summer to autumn, which are not particularly showy but contribute to the plant’s ornamental value.

Lemon Myrtle is valued for its fragrant leaves, which are used to produce essential oils and as a culinary herb. It is also appreciated for its attractive foliage and as a source of nectar for bees. In gardens, it is used for screening, as a feature plant, or in containers. Lemon Myrtle prefers well-drained soils, tolerates a range of soil types except the poorest drained, and requires ample water, especially in dry periods. It thrives in full sun to part shade and benefits from slow-release fertilizers. While generally hardy, it can be susceptible to myrtle rust, a fungal disease. It is also sensitive to frost, especially when young, and should be protected in cooler climates.CC BY-SA 4.0