Eucalyptus coccifera

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Eucalyptus coccifera
Light:Full Sun
Moisture:Xeric Mesic Hydric
Hardiness:8
Soil pH:5.6-8.4
Evergreen
Height:49'
Width:20'
Speed:Fast
Blooms:Mid Summer-Late Summer
Open Woods Forest
Native to:
Shelter
Tea:Yes
Poisonous

Eucalyptus coccifera (common name: mt. wellington peppermint)

Propagation: Seed - surface sow February/March in a sunny position in a greenhouse[1][2][3]. Species that come from high altitudes appreciate 6 - 8 weeks cold stratification at 2°c[4]. 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[4].

Cultivation: Prefers a sunny position in a moderately fertile well-drained moisture retentive circum-neutral soil[4]. Tolerates poor soils, especially those low in mineral elements[4]. Tolerates dry soils and also drought once it is established. A very wind hardy tree[5][6][7], tolerating salt-laden winds[4].

Plants are very frost resistant[6][8], tolerating long periods down to -10°c and short periods down to -16°c[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[4]. 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[4].

A very ornamental tree, it grows very well in Britain as far north as the west of Scotland[1]. The leaves are extremely aromatic[9].

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[9]. They strongly resent root disturbance and should be container grown before planting out into their permanent position[1].

Plants are subject to 'silver leaf' disease[10].

Eucalyptus monocultures are an environmental disaster, they are voracious, allelopathic and encourage the worst possible attitudes to land use and conservation[4].

The flowers are rich in nectar and are a good bee crop[4].

Range: Australia - Tasmania.

Habitat: Mountains to 1200 metres[8].

Usage: Olive-green and gold dyes are obtained from the leaves[11].

An excellent fuel, it is similar in quality to ash, Fraxinus excelsior[10].

Pollinators: Bees

Soil: Can grow in light, medium, and heavy soils.

Drainage: Prefers well drained soil.

Wind: Tolerates maritime wind exposure

In Leaf: Evergreen

Flower Type: Hermaphrodite

Known Hazards: Citronellal, an essential oil found in most Eucalyptus species is reported to be mutagenic when used in isolation[12].

In large doses, oil of eucalyptus, like so many essential oils has caused fatalities from intestinal irritation[12]. Death is reporte

Links

References

  1. 1.0 1.1 1.2 Bean, William. Trees and Shrubs Hardy in Great Britain. Murray, 1981.
  2. Sheat, Wilfrid. Propagation of Trees, Shrubs and Conifers. St Martin, 1948.
  3. Rice, Graham. Growing from Seed Volume 2. Thompson and Morgan, 1988.
  4. 4.0 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9 Huxley, Anthony. The New Royal Horticultural Society Dictionary of Gardening. MacMillan Press, 1992.
  5. Chittendon, Fred. RHS Dictionary of Plants. Oxford University Press, 1951.
  6. 6.0 6.1 Arnold-Forster, William. Shrubs for the Milder Counties.
  7. Rosewarne Experimental Horticultural Station. Shelter Trees and Hedges. Ministry of Agriculture, Fisheries and Food, 1984.
  8. 8.0 8.1 Kelly, Stan. Eucalypts. Nelson, 1969.
  9. 9.0 9.1 Genders, Roy. Scented Flora of the World. Robert Hale, 1994.
  10. 10.0 10.1 Brooker, M. A Key to Eucalypts in Britain and Ireland. HMSO, 1983.
  11. Grae, Ida. Nature's Colors. MacMillan Publishing, 1974.
  12. 12.0 12.1 Duke, James. Handbook of Energy Crops. 1983.