A large group of fast-growing evergreen trees and ornamental shrubs. Many forms have attractive mottled or peeling bark when mature. Originating from the Australian continent, they can now be found growing in gardens all over the world.A number of good forms such as E. gunnii are suitable for growing in the UK, although they rarely flower well or set seed here. Gum trees can reach extensive proportions, even in the UK, but can be kept more compact by pruning.