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Note: This profile also includes the “Flowering Gum” cultivars.
A tree restricted to the south-west of Western Australia where it grows to a typical height of 10 metres, forming a lignotuber. It is generally found in the Walpole-Mt Frankland region (west of Albany) with some smaller populations to the east.
It grows on sandy soils in low-lying areas of heath or woodland.
The bark is continuous and flaky / tessellated, brown and does not shed much.
The juvenile foliage / coppicing-growth is disjunct, lanceolate to broad-lanceolate, mid-green and glossy in colour, to about 17 cm long and 5 cm wide.
Corymbia spp. have simple adult leaves which are arranged alternately. In this species, the adult leaves are also disjunct, mid-green, dull to glossy, lanceolate (spear-shaped) to 13 cm long and to 5 cm wide. Leaves are noticeably discolorous.
The primary inflorescence of “eucalypts” (Angophora / Corymbia / Eucalyptus) is an umbellaster (an umbel-like cluster of flowers). In this species, the flower buds are arranged in umbellasters of 7, oval to pyriform (oval to pear-shaped), to 18 mm long and 8 mm wide. In Corymbia and Eucalyptus, the petals and sepals are fused into the distinctive calyptra (bud cap) which is shed when the flower opens. The calyptra / operculum is very short and rounded to flattened.
The conspicuous stamens give the flowers their appearance; red in colour. In Corymbia species, umbellasters are typically produced, in clusters, at the terminals, beyond the foliage to create a very showy display. In this species, flowering can be observed in December to May, with flowers of this species bright red to pink or orange, each flower about 3 cm across.
The fruit is a capsule (commonly called “gumnut”) typically urn-shaped in most bloodwoods. In this species, it is large, to 45 mm long by 20 mm wide. The disc is deeply-depressed and valves enclosed. The fruit make for easy identification.
Corymbia ficifolia is very common in cultivation and has been cultivated for a long time on the east coast.
It prefers a sandy soil in full sun. It can reach 15 metres tall in gardens so needs some space.
However, included in this profile is coverage of the various cultivars that are grown. From trial and error, it was found that this species did not grow all that well in all areas on the east coast of Australia and other areas. Therefore, it was investigated if grafting could be undertaken. An article on this is pasted in the references. Plants of Corymbia ficifolia are grafted onto a north-east coast species, Corymbia ptychocarpa (Swamp Bloodwood). A range of cultivars and forms have been created with flower colours ranging from white to red, orange and pink.
These cultivars are much more reliable and grow on a range of soils. They also typically reach about 4 to 5 metres tall and are therefore very suited to small gardens.
From seed for pure Corymbia ficifolia but cultivars could only be done from cuttings (if possible) to maintain true-to-type.
There are various cultivars now available in a range of flower colours (see references). These include:
• ‘Mini Red’: grows to 2.5 metres with bright red flowers
• ‘Wild Sunset’: grows to 6 metres with orange-red flowers
• ‘Wildfire’: grows to 6 metres with vibrant red flowers
• ‘Baby Orange’: grows to 3 metres with orange flowers
• ‘Baby Scarlet’: grows to 3 metres with deep red flowers
• ‘Calypso’: grows to 5 metres with deep pink flowers
• ‘Fairy Floss’: grows to 7 metres with light pink flowers
• ‘Snowflake’: grows to 6 metres with white flowers
• ‘Summer Red’ grows to 5 metres, with bright red flowers.
Eucalyptus ficifolia was transferred into the new genus Corymbia in 1995 when it was erected by Ken Hill and Lawrie Johnson. It is still seen under the earlier name in some published works.
Corymbia is a genus of about 115 species. It is reported that 110 of these are endemic to Australia, occurring in all states, except for Tasmania. 4 other species occur in Australia and New Guinea. 1 species is endemic to New Guinea. Previously, all Corymbia spp. were classified as Eucalyptus spp. A study showed that this group were more closely related to Angophora than Eucalyptus. The reclassification of these ‘eucalypts’ into Corymbia created much controversy in a wide range of circles (i.e., horticultural, botanical and political!). NSW currently has 10 species with 1 naturalised.
Regenerates after bushfires by epicormic buds and lignotuber as well as seed.
Corymbia – from the Latin corymbium, meaning “corymb” (a raceme of flowers in which the peduncles of the lower flowers are longer than those of the upper flowers so that the inflorescence has an overall even-curved apex (similar to the appearance of a piece of broccoli or cauliflower).
ficifolia – Latin – fici referring to the genus Ficus (the Fig genus) and –folia (leaves) – referring to the fig-like foliage of the species.
This species is not considered to be at risk in the wild.
Western Australian Botanic Gardens and Parks Authority – Corymbia ficifolia profile page https://www.bgpa.wa.gov.au/about-us/information/our-plants/plants-in-focus/2703-corymbia-ficifolia
Flower Power – Flowering Gum Trees page
https://www.flowerpower.com.au/garden-advice/gardening/flowering-gum-trees/
Garden Clinic – A story about the breeding of Grafted Gums. https://www.gardenclinic.com.au/how-to-grow-article/a-story-about-grafted-gums
Wrigley, J.W. & Fagg, M.I. (2001). Australian Native Plants – Propagation, cultivation and use in landscaping. 4th edition. New Holland Publishers, Pty. Ltd. Australia.
Arcane Botanica YouTube Channel (Dan Clarke) – Eucalypt Overview Theory Video https://www.youtube.com/watch?v=m89bALPO4uc
Arcane Botanica YouTube Channel (Dan Clarke) – Eucalypt Theory – Corymbia Video https://www.youtube.com/watch?v=dWol8ZP3F2s