Riyadh Plants

Southern Blue Southern Blue Gum, keenah, kafurGum

The Blue Gum, known in Arabic as keenah or kafur, is one of the most extensively planted trees in its native country of Australia. It typically grows to 30 metres and more, and is similar in habit to E. camaldulensis with its peeling bark. When young, the leaves are broad, in opposite pairs and covered with a blue-grey bloom. The mature leaves are then narrow, curved and dark green, up to 20 cm in length. Cream-coloured flowers produce nectar yielding a typically flavoured honey. The roundish fruits bear many small seeds, shed through the top of the capsule. Like all eucalypts, it has deep-spreading roots and grows rapidly, adapting to the conditions in of all arid regions. E. globulus is the most cultivated plantation tree in Australia, widely used as pulpwood and for fuel. The Blue Gum was often planted as a street tree in the past, but it is now regarded as unsuitable, owing to its mature size and high maintenance requirement. Some ecologists consider it to be an invasive species, as well as a fire hazard. Nevertheless, it is one of several eucalypts suitable for planting in the Arriyadh region as a wind break, in reafforestation, and stabilising slopes and watercourses. Given space, it is suitable as a park tree. Other eucalypts worth mentioning are E. citriodora (Lemon-Scented Gum), a graceful, frost-tender tree, often seen in Kuwait, and E. microtheca (Coolibah), a widely distributed eucalypt, proven in Kuwait and very frost-hardy.

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General information

Family names Myrtaceae
Climatic zones Tropical , Mediterranean , Sub Tropical
Rainfall Semi Humid , Semi Arid
Propagation Sowing and Pricking Out
Cultivation High
Planting phase

Environmental conditions

Urban climate Resistant
Desiccation Resistant
Drought Vulnerable
Irrigation Low
Salinity Low < 1,000 ppm
Hardiness zones -9°C

Plant shape

Vigour
Height From 12 To 30 M
Expansion from to From 6 To 10 M
Leaves Evergreen

Flower

Flowercolors White
Flower size from to
Flowering period From early January to the end of March
Smell Spicy , Sweet , Flower , Aroma , Scented , Pleasantly Scented , Leaf

Fruit

Type of fruit Capsule
Fruit size from to From 2 to 2.5 cm
Toxicity Inedible

Location of Use

Public Open Space , Open Country , Hillside Planting , Hillside Stabilization , Park Planting , Stream Edge , Herb , Specimen , Urban Area , Wadi Plant

Other choices

Cut Flower , Attractive Foliage , Grouped Planting , Plant Used by ADA , Invasive Roots , Pollen Allergy , Good Scent , Attractive Shape , Seasonal Display , Dominant Plant , Medical Plant