The leaves and leaf oil of … Blue Gum Tree, common eucalyptus tree. Keep cool (45-55 °F) in winter. The widespread blue gum (Eucalyptus globulus) is cold-hardy in U.S. Department of Agriculture plant hardiness zones 9 through 10 where it enjoys the Mediterranean climate. THe bark is a pale color and the leaves a dull green. At dusk, the pale green-gray leaves shimmered in a breeze. The oil has a diverse range of use. Secrets of success. 4,5. Lemon Scented Gum Tree, its strong lemon scent repels insects. These trees are easily recognized by their waxy blue leaves and a grayish bark which reveals a smooth, contrasting yellowish surface when the bark sheds off in long strips. The most common type of eucalyptus, known as the Blue Gum tree, grows primarily in Australia and Tasmania, although there are over 300 known variations of the plant. Manna Gum Tree, the bark peels off in strips. When fog dripped off the long slender leaves, the rich menthol scent provided a mood-elevating aroma therapy. The Blue Gum eucalyptus tree is one of the world’s best-known eucalyptus trees and they’re prized for their fragrant blue foliage! Red Flowering Gum Tree, named for its scarlet red flowers. The trees required large amounts of water to thrive, thus lowering the water table and eliminating breeding habitat for malaria-carrying mosquitoes as well as repelling these insects with the aroma exhaled from the leaves. Eucalyptus leucoxylon, commonly known as yellow gum, blue gum or white ironbark, is a species of small to medium-sized tree that is endemic to south-eastern continental Australia.It has smooth yellowish bark with some rough bark near the base, lance-shaped or curved adult leaves, flower buds in groups of three and cylindrical, barrel-shaped or shortened spherical fruit. There is a mountain range in New South Wales called the Blue Mountains for this reason (per a contributing member from Down Under- … It has mostly smooth bark, juvenile leaves that are whitish and waxy on the lower surface, glossy green, lance-shaped adult leaves, glaucous, ribbed flower buds arranged singly or in groups of three or seven in leaf axils, white flowers and woody fruit. The oil is abstracted from the leaves of the blue gum tree by the use of a separation process known as steam distillation. In fact, the leaves are the principle source of eucalyptus oil, which is said to have potent medicinal properties. Gum Tree Species: List of Different Types of Gum Trees. Eucalyptus globulus, commonly known as southern blue gum, is a species of tall, evergreen tree endemic to southeastern Australia. Temperature: Cool or average warmth. The blue gum, a mid-sized eucalyptus reaching around 150 to over 200 feet tall, is the most common eucalyptus in California. Eucalyptus globulus (Blue Gum) grows too tall for indoor cultivation; it is better to choose either the slower-growing Eucalyptus gunnii (Cedar Gum) or Eucalyptus citriodora (Lemon-Scented Gum). Blue gum (Eucalyptus Globulus) is the predominant supply of eucalyptus oil by the whole of the eucalyptus genus. The blue gum … Reportedly in the heat of day, the leaves give off essential oils and from a distance this gives the sky line a blue tinge. Rainbow Gum Tree, spectacular rainbow colored trunk; Red Cap Gum Tree, red helmet gum. Which is said to have potent medicinal properties abstracted from the leaves a dull green genus... Manna Gum Tree, its strong lemon scent repels insects a mood-elevating aroma therapy trunk. Rainbow colored trunk ; red Cap Gum Tree, spectacular rainbow colored trunk ; red Cap Tree. The predominant supply of eucalyptus oil by the use of a separation known..., a mid-sized eucalyptus reaching around 150 to over 200 feet tall, is the most eucalyptus. 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