Citronellal, an essential oil found in most Eucalyptus species is reported to be mutagenic when used in isolation
In large doses, oil of eucalyptus, like so many essential oils has caused fatalities from intestinal irritation
. Death is reported from ingestion of 4 - 24 ml of essential oils, but recoveries are also reported for the same amount
. Symptoms include gastroenteric burning and irritation, nausea, vomiting, diarrhoea, oxygen deficiency, ,weakness, dizziness, stupor, difficult respiration, delirium, paralysis, convulsions, and death, usually due to respiratory failure
An essential oil from the leaves is used as a food flavouring in baked goods, ice cream and sweets
The leaves yield up to 1.3% of an essential oil. It is used medicinally and as a food flavouring
The wood is used as a fuel
Eucalyptus leaves are a traditional Aboriginal herbal remedy. The essential oil found in the leaves is a powerful antiseptic and is used all over the world for relieving coughs and colds, sore throats and other infections
. The essential oil is a common ingredient in many over-the-counter cold remedies
The essential oil obtained from the leaves is antirheumatic, antiseptic and expectorant
. This is one of the main species used for its medicinal oils, which contain up to 85% eucalyptol
. The essential oil obtained from various species of eucalyptus is a very powerful antiseptic, especially when it is old, because ozone is formed in it on exposure to air. It has a decided disinfectant action, destroying the lower forms of life
. The oil can be used externally, applied to cuts, skin infections etc, it can also be inhaled for treating blocked nasal passages, it can be gargled for sore throat and can also be taken internally for a wide range of complaints
. Some caution is advised, however, because like all essential oils, it can have a deleterious effect on the body in larger doses
Seed - surface sow February/March in a sunny position in a greenhouse
. Species that come from high altitudes appreciate 6 - 8 weeks cold stratification at 2°c
. Pot up the seedlings into individual pots as soon as the second set of seed leaves has developed, if left longer than this they might not move well. Plant out into their permanent positions in early summer and give them some protection from the cold in their first winter. The seed can also be sown in June, the young trees being planted in their final positions in late spring of the following year. The seed has a long viability
Practical Plants is currently lacking information on propagation instructions of Eucalyptus polybractea. Help us fill in the blanks! Edit this page to add your knowledge.
Prefers a sunny position in a moderately fertile well-drained moisture retentive circum-neutral soil
. Tolerates poor and dry soils, especially those low in mineral elements
. Established plants are drought tolerant
This species is cultivated in Australia for its essential oils. It is of very doubtful hardiness in Britain, though it might succeed outdoors in the mildest areas of the country.
Eucalyptus species have not adopted a deciduous habit and continue to grow until it is too cold for them to do so. This makes them more susceptible to damage from sudden cold snaps. If temperature fluctuations are more gradual, as in a woodland for example, the plants have the opportunity to stop growing and become dormant, thus making them more cold resistant. A deep mulch around the roots to prevent the soil from freezing also helps the trees to survive cold conditions. The members of this genus are remarkably adaptable however, there can be a dramatic increase in the hardiness of subsequent generations from the seed of survivors growing in temperate zones.
Eucalyptus monocultures are an environmental disaster, they are voracious, allelopathic and encourage the worst possible attitudes to land use and conservation.
Plants are shallow-rooting and, especially in windy areas, should be planted out into their permanent positions when small to ensure that they do not suffer from wind-rock. They strongly resent root disturbance and should be container grown before planting out into their permanent position.
Plants respond well to coppicing.
The flowers are rich in nectar and are a good bee crop
Problems, pests & diseases
Associations & Interactions
There are no interactions listed for Eucalyptus polybractea. Do you know of an interaction that should be listed here? edit this page to add it.
Polycultures & Guilds
There are no polycultures listed which include Eucalyptus polybractea.
This table shows all the data stored for this plant.
Material uses & Functions
Native Climate Zones
Adapted Climate Zones
Native Geographical Range
Root Zone Tendancy
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? Sheat. W. G. Propagation of Trees, Shrubs and Conifers. MacMillan and Co (1948-00-00)
? Rice. G. (Editor) Growing from Seed. Volume 2. Thompson and Morgan. (1988-00-00)
? 10.010.110.210.310.410.510.610.710.810.9 Huxley. A. The New RHS Dictionary of Gardening. 1992. MacMillan Press ISBN 0-333-47494-5 (1992-00-00)
? Genders. R. Scented Flora of the World. Robert Hale. London. ISBN 0-7090-5440-8 (1994-00-00)
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