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Myrtaceae FAMILY

Eucalyptus caesia

Eucalyptus caesia

Edibility
2/5
Medicinal
0/5

Safety & Hazards

None known

Cultivation Details

HabitEvergreen Tree
GrowthFast

Eucalyptus caesia is native to the arid and semi-arid climate of southwestern Australia. Rainfall occurs mainly in the winter, with a mean annual rainfall of around 200 - 300mm. There are generally up to 10 frosts a year, with temperatures occasionally falling as low as -7°c[1]. Prefers a sunny position in a moderately fertile well-drained moisture retentive circum-neutral soil[2]. Tolerates poor and dry soils, especially those low in mineral elements[2]. A drought tolerant plant once established[2], but it is not very wind resistant[3]. The plant develops a lignotuber - this is a woody tuber that starts to develop near the base of seedlings and can become massive in the mature plants of some species. It possesses embedded vegetative buds, allowing the plant to regenerate following crown destruction, for example by fire[4]. 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[2]. Many members of this genus are remarkably adaptable however, and there can be a dramatic increase in the hardiness of subsequent generations from the seed of survivors growing in temperate zones[2]. 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[5]. They strongly resent root disturbance and should be container grown before planting out into their permanent position[6].

Propagation

Seed - surface sow late winter/early spring in a sunny position in a greenhouse[6, 7, 8]. Species that come from high altitudes appreciate 6 - 8 weeks cold stratification at 2°c[2]. 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 early summer, the young trees being planted in their final positions in late spring of the following year. The seed has a long viability[2]. Cite as: Temperate Plants Database, Ken Fern. temperate.theferns.info. 2026-02-21. <temperate.theferns.info/plant/Eucalyptus+caesia>

Pollinators

Bees, Insects

References

  1. [1]Eucalypts for Planting — Jacobs M.R. · FAO; Rome · 1981 · http://www.fao.org · ISBN 92-5-100570-2 ↩︎An excellent publication, rather dated now but with a wealth of information about the Eucalypts. It can be downloaded from the Internet as a PDF file.
  2. [2]The New RHS Dictionary of Gardening. 1992. — Huxley. A. · MacMillan Press · 1992 · ISBN 0-333-47494-5 ↩︎Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
  3. [3]Eucalypts. (2 volumes.) — Kelly. S. · Nelson, Melbourne · 1969 · ISBN - ↩︎A very readable book (in two volumes) on the many species of Eucalyptus trees in Australia.
  4. [4]EUCLID - Eucalypts of Australia — Centre for Australian National Biodiversity Research, Canber · http://keyserver.lucidcentral.org:8080/euclid/data/02050e02-0108-490e-8900-0e0601070d00/media/Html/index.htm ↩︎A website dedicated to the genus Eucalyptus (sensu latu), with descriptions and nomencultural information on all the species.
  5. [5]Scented Flora of the World. — Genders. R. · Robert Hale. London. · 1994 · ISBN 0-7090-5440-8 ↩︎An excellent, comprehensive book on scented plants giving a few other plant uses and brief cultivation details. There are no illustrations.
  6. [6]Trees and Shrubs Hardy in Great Britain. Vol 1 - 4 and Supplement. — Bean. W. · Murray · 1981 · ISBN - ↩︎A classic with a wealth of information on the plants, but poor on pictures.
  7. [7]Propagation of Trees, Shrubs and Conifers. — Sheat. W. G. · MacMillan and Co · 1948 · ISBN - ↩︎A bit dated but a good book on propagation techniques with specific details for a wide range of plants.
  8. [8]Growing from Seed. Volume 2. — Rice. G. (Editor) · Thompson and Morgan. · 1988 · ISBN - ↩︎Very readable magazine with lots of information on propagation. An interesting article on Ensete ventricosum.
  9. [9]Wild Food in Australia. — Cribb. A. B. and J. W. · Fontana · 1976 · ISBN 0-00-634436-4 ↩︎A very good pocket guide.
  10. [10]Eucalyptus Leaf Oils: Use, Chemistry, Distillation and Marketing — Southwell I.A. · 1992 · https://doi.org/10.1016/0031-9422(92)80403-2 ↩︎An extensive list of Eucalyptus species and their essential oil content.