‘Rosea’ Red Ironbark

Red Ironbark is a highly valuable tree because of its adaptation to many sites, strong wood and ability to grow well in smog. This tree has been cultivated as well outside of Australia, in countries that include the US, Brazil and many Mediterranean areas. It originates in Queensland, grows through NSW and into the north-eastern areas of Victoria. The only indigenous Ironbark in Melbourne is the closely-related E. tricarpa.

‘Rosea’ Red Ironbark is a seed selection that is red flowering. In all other attributes, it is identical to the species, but typically will grow slightly smaller—to 20m, rather than the possibility of a 30m tall tree. The growth is normally upright on juvenile trees, but trees begin spreading with age and can become 15m wide. The bark of this tree gives it its common name; Red Ironbarks have deeply fissured plate-like bark that is a rusty red beneath and black on the surface. This bark contrasts well with the foliage, which is dark green to grey-blue.

‘Rosea’ Red Ironbark will grow successfully on many sites, including those alkaline areas. For best growth, a well-drained site in full sun should be selected. Establishment is rapid with good quality planting stock, and Red Ironbark should be fully established after 2 years. Trees will grow up to 1200mm per year given ideal conditions.

Bifurcation, or co-dominant leaders, can be problematic with Ironbarks. It is essential that this tree be purchased as a single-leader specimen with good formative canopy development.

Height Diagram

Typical mature height:

variable to 20m

Useful in:

broad streetscapes, parks

Sites for best growth:

all reasonably well-drained

Gallery
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