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A popular ornamental tree previously classified as Eucalyptus ptychocarpa but on the re-classification round-about have become Corymbia ptychocarpa. Flower color may be red or shades of pink to creamy white.
Corymbia 'Summer Beauty' is a hybrid between Corymbia ptychocarpa and Corymbia ficifolia.
Corymbia torelliana has fibrous bark on the base of the trunk followed by smooth bark which is usually greenish. Flowers white in large corymbose panicles on the outside of the foliage.
Eucalyptus calycogona is cultivated as an ornamental or shade tree that is suitable for coastal or inland areas.
It is one of the most widely planted eucalypts in the world. The tree produces welcome shade in the extreme temperatures, and plays an important role in stabilising river banks, holding the soil and reducing flooding. The species is named for a private estate garden near the Camaldoli monastery near Naples (L'Hortus Camaldulensis di Napoli), from where the first specimen came to be described. Red gum is so named for its brilliant red wood, which can range from a light pink through to almost black, depending on the age and weathering. Cold hardy, very fast growing. Like all eucalyptus trees it can grow as much as 6-12 ft per season.
Trees are usually mature in the juvenile leaf phase but can often produce intermediate and adult leaves which are stalked, broad-lanceolate to 11 x 2cm, concolorous, greyish-blue and glaucous. Foliage has the smell of menthol.
Drought-tolerant; suitable for xeriscaping.
A very fast growing evergreen tree native to Queensland, Australia. Leaves have a strong lemony scent when crushed. Leaves yield lemon-scented oil used in perfumery. The trunks and branches of this species are powdery white to pinkish and the trunks are usually very straight. In nature the trees will reach 75-100 ft. While this species get very big in nature, its size is easily control with selective pruning and container size when grown in the greenhouse setting. The white blooms are not very distinctive. The blooms are followed by woody urn-shaped capsules about 1/2 inch wide. Eucalyptus citriodora need full sun with a well-drained soil mix for container growing. In the landscape, trees are pretty hardy and tolerate some frost.
Eucalyptus deglupta (Rainbow Eucalyptus) originates from the rainforests of Mindanao, which is the southernmost and easternmost island in the Philippine island group. It is a gorgeous, columnar, tall tree with peeling bark that displays a rainbow of colors. In nature, it can reach 220ft, however normally averages around 80 ft tall. It is a fast grower, though it can be kept to a much smaller size if desired. Generally likes a lot of water and naturally grows in a rain-forest environment. Prefers a humid, cooler tropical climate, unlike Eucalyptus species native to Australia.
This species is hardy to 26-28F, but only for brief periods; will not stand intense or prolonged frosts. This means that the tree is a tropical grower and as such can be grown outdoors only in Florida and perhaps southern Texas and southern California.
Planted as an ornamental street tree in tropical regions for its beautiful bark and stately appearance. The heartwood is red and is used as a timber and ornamental wood. Leaves have pleasant spicy aroma provided by essential oils, like most eucalyptus plants; however it is not as strong in this species.
Eucalyptus erythrocorys is one of the most spectacular of the eucalypts when in flower. Small, bushy tree has very dark green foliage and a white trunk. It has bright red caps that reveal yellow flower clusters when blooming throughout the year. The foliage of nearly all species has a strong pungent odor similar to menthol.
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