Eucalyptus gunnii, commonly known as cider gum, is a fast-growing evergreen tree endemic to the central plateau of Tasmania, Australia, where it thrives in subalpine environments. It can reach heights of up to 35 meters (115 feet) and is notable for its smooth, cream-colored bark that peels off in strips, revealing a patchwork of gray, green, and brown. The juvenile leaves are round and blue-green, while the adult leaves are elongated and a dull green. Cider gum produces clusters of small white flowers throughout the year, with a peak in summer. The flowers are not particularly showy, but they do provide nectar for pollinators.

Cider gum is valued for its attractive, peeling bark and evergreen foliage, as well as its exceptional cold tolerance among eucalyptus species, surviving temperatures down to −14 °C and briefly to −20 °C. It is widely cultivated as an ornamental tree in temperate regions, including the British Isles and parts of western Europe. The tree can be pruned to maintain a smaller size or shrubby form, which is useful in smaller gardens. It is adaptable to a range of soil types, including sandy and chalky soils, but prefers well-drained loamy soils. Gardeners should monitor its spread when grown outside its native range.CC BY-SA 4.0