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Eucalyptus globulus subsp. globulus – Tasmanian Blue Gum, Southern Blue Gum, Blue Gum

Botanical nomenclature: Eucalyptus globulus subsp. globulus
Common name: Tasmanian Blue Gum, Southern Blue Gum, Blue Gum
Family: myrtaceae
Origin: tasmania and australia
Height: 30 – 90 meters
Luminosity: full sun, partial shading
Climate: see description below

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Description

Eucalyptus globulus ssp globulus is a precious plant, explaining in the vegetable kingdom for their importance, both of the point of view referenced to its medicinal properties, and from the economic point.

The natural occurrence area of the species includes the tasmania and the south of the state of victoria (australia). The flower of the eucalyptus globulus was proclamated on november 27, 1962 as a floral emblem of the state of tasmania.

It is a forestry specimen of leaf perene and one of the world’s tallest trees, featuring a large gate (between 30 and 55 meters in height, could achieve more than 90 meters) and fast growth, and can live for more than 100 years.

Their trunk is erect and slit, with ramification only in the terminal part, with smooth-clear, flat rydoma, that is easily released (long strips) and when drying rolls between.

The eucalyptus of tasmania has a large climate adaptability, developing satisfactily as well as climate therapy as in tropical climate is resistant to temperature of up to 7 degree negatives (-7º c).

It is a tree that grows and develops well also in places with great availability of water as in places with great excess of the same.

The crebry or creamy flowers are installed in the axilles of leaves producing a nectar which when transformed in honey has characteristic flavor and aroma and of great commercial value.

When the regeneration plant is quickly turned from the toky, producing strong turnings recovered by juvenile sheets when they take away quickly reconstitute the tree. Eucalyptus plantations can be repeatedly cutted without replacement need.

Your wood is constituted by fibers of short and very homogeneous length, which are characterized by a large softness, excellent rigidity, great dimensional stability and strong resistance to moisture.

In addition to its use for the production of paper pulp, use in which its fibers produce paper of great quality, its wood is also used as a structural element in constructions and for wood, producing good quality biofuel.

As to their medicinal properties, the part is used is the leafs and, after the leaves of all eucalyptus to present similar or identical properties, are those of eucalyptus globulus that present more references for medicinal uses. Your leaves are rich in tanins and essential oils.

Germination Guide

🌍 Southeastern Australia: Tasmania, southern Victoria, and Bass Strait Islands
Easy

Eucalyptus globulus, commonly known as Tasmanian Blue Gum, is a fast-growing evergreen tree native to southeastern Australia. This is the world's most extensively planted eucalyptus species and is valued for timber, eucalyptus oil production (rich in cineole), and medicinal applications. Seeds have light requirements for germination and respond well to cold stratification, typically germinating rapidly at warm temperatures following the cold treatment.

Germination
Germination time
Expect germination in

7 – 28 days

Temperature

Min 20°C
Ideal 25°C
Max 28°C

Light
☀️ Light required

Substrate moisture
💧 Medium

Sowing depth
Surface

Germination rate
85 %


Seed Pre-treatment
  • ❄️


    Cold stratification — 42 days at 5°C
  • 📋

    Additional notes
    Cold stratification is optional but improves germination consistency. Seeds should be stratified in the refrigerator for 4-6 weeks on moist (not waterlogged) substrate at 5°C. Alternatively, seed can germinate without stratification at warm temperatures (75°F/24°C or higher) after 3-4 weeks, though stratification provides more reliable results.

Substrate & Container
Recommended substrate
Fine, light, well-draining seed mix or potting soil (pH 5.5-6.2). Seeds are tiny; cover with thin layer of sand to reduce damping-off risk. Peat, vermiculite, or commercial seed mix are suitable.

Recommended container
Plastic flats or seed trays with drainage holes; transparent covers or plastic sheets help maintain humidity. Individual plugs (1-3 seeds per plug) can also be used.


Growing Tips
Surface sow seeds on moist substrate without burying; they require light for germination. Maintain substrate moisture but avoid waterlogging. Germination occurs in 7-28 days at 20-28°C; optimal temperature is 24-25°C where 96% germination rate is achieved within 21 days. Keep seed container in bright light (avoid direct sunlight for young seedlings). Seeds prefer humid conditions (95-100% humidity during first 9 days); reduce to 40-60% thereafter. Thin or transplant seedlings to individual pots once second set of seed leaves appear. Do not allow seedlings to dry excessively in pots, as they are drought-sensitive when young. If germination stalls after initial sowing at warm temperatures, apply cold stratification for 2-4 weeks to break dormancy. Provide bright light and good ventilation post-germination to prevent damping-off.

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