When a Corymbia ficifolia flowering gum is in full summer bloom, there is nothing else like it in the Australian garden. The dense, rounded crown becomes an explosion of colour — scarlet, coral-pink, vibrant orange, or the rarest fairy-floss pink — at exactly the time of year when most other flowering plants are struggling in the heat. Nectar-feeding birds arrive in numbers. Bees work the flowers constantly. The visual impact from the street or across the garden is extraordinary. It is one of the most spectacular flowering events in the Australian native plant world.
The challenge with Corymbia ficifolia — the Western Australian red flowering gum — has historically been that growing it from seed in eastern Australia was a gamble. Flower colour is genetically complex and unpredictable in seedling-raised plants: you might plant a tree expecting brilliant red blooms and wait five years only to discover pale orange or pink flowers instead. Growing from seed in eastern states also produced trees with variable performance in the more humid conditions of Victoria, New South Wales, and Queensland, where the species' natural preference for the sandy, low-humidity conditions of south-western Western Australia put it at a disadvantage.
Grafting changed everything. By selecting outstanding clones with known, consistent flower colour and grafting them onto robust rootstocks — primarily Corymbia maculata (Spotted Gum) or Corymbia ptychocarpa (Swamp Bloodwood) — breeders have produced flowering gums that are colour-reliable, more adaptable to eastern Australian soils and humidity, more compact in size, and more reliably floriferous from an early age. A grafted Corymbia is a fundamentally better garden tree than a seedling-grown specimen, which is why our horticultural team stocks exclusively grafted varieties in this collection. At Online Plants, we stock eight Corymbia varieties spanning the full colour spectrum — from the deepest scarlet red of Baby Scarlet and Wildfire, through the vibrant orange of Baby Orange, the romantic coral-pink of Calypso Queen, to the unique and barely-there blush of Fairy Floss — plus the fragrant white-flowering Corymbia citriodora Scentuous. All are grafted for colour reliability and delivered to your door backed by our 30-day guarantee to grow.
Why grafted Corymbia is worth the investment
Grafted Corymbia trees are premium products, and their price reflects the horticultural complexity of producing them. Grafting eucalypts and corymbias is notoriously difficult — success rates are lower than with most other tree types, and supply consistently fails to meet demand. When you purchase a grafted Corymbia from Online Plants, you are buying:
• Guaranteed flower colour — the bloom you see in the product image is the bloom you will get • Superior adaptability to eastern Australian soils — particularly heavy clay and non-sandy loam conditions • Greater humidity tolerance — critical for gardens in Sydney, Brisbane, and coastal NSW and QLD • More compact and predictable mature size than seedling-grown trees • Earlier flowering — grafted trees typically flower within 2–3 years of planting versus 5+ years from seed • An important note: always remove any shoots that emerge from below the graft union at the base of the trunk. These are growth from the rootstock and, if left unchecked, will outcompete and eventually replace the grafted variety.
Our 8 Corymbia varieties — expert descriptions
Baby Scarlet
Corymbia ficifolia 'Baby Scarlet'
Best for:
Small gardens, courtyards, feature tree, pots
Height: 3–4m h x 3m w
Flower: Deep scarlet red (summer–autumn)
Price: $344.99
Key trait: Compact red — most popular variety
One of the most popular compact grafted flowering gums in our range — Baby Scarlet grows to a manageable 3–4m and produces vivid deep scarlet-red flowers from summer through to autumn. New growth on Baby Scarlet emerges with an attractive bronze-red tint, adding additional ornamental interest through the warmer months. Its rounded, compact habit makes it perfect for small gardens, courtyard feature planting, and large containers. Grafted onto Corymbia maculata rootstock for broad soil adaptability. Birds, particularly lorikeets and honeyeaters, visit heavily during flowering.
The orange-coloured counterpart to Baby Scarlet, Baby Orange produces intensely vibrant orange flower clusters on a compact 3–4m tree. Grafted onto Corymbia maculata rootstock, it is highly tolerant of a wide range of soil types and conditions — one of the most soil-adaptable varieties in the range. An outstanding choice for coastal gardens, native-themed landscapes, and smaller suburban spaces where a bold orange accent is the design intent. Flowers in late spring to early summer, providing colour slightly earlier in the season than most other varieties. Currently sold out — contact us to join the waitlist.
Key trait: Rarest colour — must-have for collectors
The rarest and most romantic flowering gum in our collection. Fairy Floss produces flowers in the palest, most delicate pink imaginable — almost white, with the softest blush of pink, in complete contrast to the bold reds and oranges of the other ficifolia varieties. Its canopy is covered in these extraordinary flowers in summer, creating an effect unlike any other flowering gum. Growing to around 6–7m, it is suited to medium and larger gardens, streetscapes, and parks where its unique colour can be appreciated. Our team considers it the must-have variety for gardeners looking for something truly different. Best grown in temperate climates with low humidity.
Wildfire
Corymbia ficifolia 'Wildfire'
Best for:
Feature tree, bird gardens, red colour statement
Height: 4–6m h x 3–4m w
Flower: Deepest vibrant red (summer)
Price: $344.99
Key trait: Maximum red impact — reddish new growth
Wildfire is the choice when maximum red impact is the priority. Producing the deepest, most vibrant red flowers of any variety in our range — a true fiery scarlet — Wildfire also displays attractive reddish-bronze new foliage growth during the warmer months, adding a secondary season of colour. Growing to 4–6m with a dense, rounded crown of large, glossy dark green leaves with contrasting lighter undersides, it forms an impressive feature tree that absolutely earns its name at the peak of summer flowering. Outstanding bird attractant — lorikeets and honeyeaters visit constantly during flowering.
Red Flowering Gum (Seedling)
Corymbia ficifolia
Best for:
Large gardens, parks, natural landscapes
Height: To 10m+ (variable)
Flower: Red to orange to pink (variable)
Price: From $19.95
Key trait: NOT grafted — flower colour variable
The classic, seedling-grown red flowering gum — the original species from south-western Western Australia. Unlike all other varieties in this collection, this plant is NOT grafted, which means flower colour is variable and cannot be guaranteed. The species naturally produces flowers ranging from red through to orange, apricot, and pink. Plants are available from $19.95 in smaller sizes. Best suited to large gardens and parks where ultimate tree size (potentially to 10m or more) can be accommodated. For a known, reliable flower colour in a compact size, we recommend choosing one of our grafted varieties above.
How to grow grafted Corymbia in Australia — expert care guide
Grafted Corymbia represent a significant investment. Getting the planting and early care right is critical to protecting that investment and ensuring the tree establishes and flowers well. Here is our horticultural team's definitive care guide:
• Position: Full sun is essential — a minimum of 6 hours of direct sunlight daily. Corymbia ficifolia does not perform well in shade and will produce sparse, leggy growth and minimal flowering in shaded positions. Choose the sunniest position available in your garden. • Soil and drainage: Good drainage is non-negotiable. Corymbia ficifolia is highly susceptible to Phytophthora root rot in waterlogged or consistently wet soil — this is the most common cause of failure in heavy clay conditions. If your garden has clay soil, either raise the planting bed by at least 30cm with quality free-draining soil, or choose an alternative variety for clay sites. Grafted varieties on Corymbia maculata rootstock have improved soil tolerance compared to seedling-grown trees, but good drainage remains essential. Sandy loam to loam soils are ideal. • Fertilising: Use a low-phosphorus, native-specific controlled-release fertiliser in spring. Standard fertilisers with high phosphorus content can be toxic to many Australian native plants including Corymbia. Apply annually in spring during the growing season. Do not over-fertilise — Corymbia responds well to moderate nutrition and excess feeding does not improve flowering. • Watering: Water regularly for the first 12 months after planting — the extended establishment period is necessary because grafted trees are premium specimens that benefit from careful early attention. Once established (typically after 12–18 months), Corymbia ficifolia grafted varieties are drought-tolerant and require only occasional deep watering during extended dry periods. Do not allow the root zone to remain waterlogged at any stage. • Staking: Stake young grafted Corymbia while establishing — they have a heavy, dense canopy that catches wind and can rock or uproot before the root system is fully anchored. Use a broad stake system with flexible ties that allow some trunk movement (which strengthens the trunk) but prevents the tree from rocking at the root zone. Remove stakes after 12–18 months. • Graft union maintenance — critical: Remove any shoots that emerge from below the graft union at the base of the trunk immediately and completely. These are growth from the rootstock plant, not the grafted variety. If left, rootstock shoots will grow vigorously and eventually outcompete and replace the grafted cultivar, and you will lose the variety's flower colour and compact form. Check monthly in the first three years. • Pruning: Pruning is not essential but a light trim after the main flowering period (late summer to early autumn) reduces the number of large woody gumnuts produced and improves the following season's flower display. Remove any dead, damaged, or crossing branches as needed. Avoid hard pruning — Corymbia does not regenerate as readily as many other eucalypts when cut back to old wood. • Frost protection: Protect young trees (up to 3–5 years) from heavy frost with frost cloth or hessian during the coldest winter months. Once mature, most grafted Corymbia ficifolia varieties tolerate light to moderate frosts. Corymbia citriodora Scentuous is less frost-hardy and requires protection in frost-prone areas throughout its life. • Gumnuts: Corymbia ficifolia produces large, woody gumnuts that can become a slipping hazard on hard paved surfaces when they drop. Consider this when choosing the planting position relative to paths, driveways, and paved entertainment areas. The compact varieties (Mini Red, Baby Scarlet, Baby Orange) produce proportionally smaller gumnuts than larger-growing varieties.
Wildlife value — why Corymbia is one of Australia's best bird-attracting trees
Grafted Corymbia flowering gums are among the most effective bird-attracting trees available for Australian gardens. The nectar-rich flowers draw lorikeets, honeyeaters, rosellas, and a wide range of other native nectar-feeding birds in large numbers during the summer flowering period. The dense, rounded canopy also provides nesting and roosting habitat. Bees and other pollinators work the flowers throughout the day. For gardeners who want to actively support local wildlife and create a living garden full of bird activity, a flowering gum is one of the single most effective plant choices available.
Why buy grafted Corymbia from Online Plants?
• 30-day guarantee to grow on every plant • Australia's first and largest online nursery — 20+ years of native tree delivery expertise • 8 grafted Corymbia varieties spanning the full colour spectrum • All grafted varieties are colour-reliable — no seed lottery • Delivery to VIC, NSW, QLD, SA and ACT — metropolitan and regional areas • No minimum order • Free garden design consultation — call 0428 110 584 or email store@onlineplants.com.au
Variety Comparison Table
Variety
Height
Flower Colour
Blooms
Best Use
Price
Baby Scarlet
3–4m
Deep scarlet red
Summer–autumn
Small gardens, feature tree, pots
$344.99
Baby Orange
3–4m
Vibrant orange
Late spring–summer
Small gardens, courtyards
$344.99
Fairy Floss
6–7m
Palest pink (unique)
Summer
Medium gardens, streetscapes
$395.00
Wildfire
4–6m
Vibrant deep red
Summer
Feature tree, bird gardens
$344.99
Citriodora Scentuous
To 8m
White (lemon scent)
Autumn–winter
Specimen, screening, scent
From $325.00
Red Flowering Gum
To 10m+
Red (seed-variable)
Summer
Large gardens, parks
From $19.95
Calypso Queen
4–6m
Coral-pink to red
Summer
Feature, streetscape, pots
$345.00
Mini Red
2.5–3m
Bright scarlet red
Dec–March
Smallest gardens, containers
$109.95
Frequently Asked Question - FAQs
What is a grafted Corymbia and why is it better than a seedling-grown flowering gum?
A grafted Corymbia is produced by joining a selected clone of Corymbia ficifolia (or a hybrid) with known, reliable flower colour onto a robust rootstock — typically Corymbia maculata (Spotted Gum) or Corymbia ptychocarpa (Swamp Bloodwood). Grafting solves two fundamental problems with seedling-grown Corymbia ficifolia in eastern Australia: unpredictable flower colour (seedlings produce flowers in any shade from red to orange to pink regardless of the parent plant) and poor adaptation to eastern Australian soils and humidity. Grafted varieties are colour-guaranteed, more compact, more adaptable to a wider range of soils, more tolerant of eastern states humidity, and they flower significantly earlier — typically within 2–3 years versus 5+ years from seed.
Which grafted Corymbia is best for a small garden in Australia?
For the smallest gardens and courtyard containers, Corymbia ficifolia Mini Red (2.5–3m) is our top recommendation — it is genuinely compact enough for a large pot and produces full-scale scarlet flowering gum blooms at eye level. For slightly larger small gardens up to 3–4m, Baby Scarlet and Baby Orange are outstanding choices, with deep red and vibrant orange flowers respectively. Calypso Queen (4–6m) suits medium spaces where a slightly taller tree with coral-pink blooms is preferred. All four are grafted for reliable colour and manageable size.
Can grafted Corymbia grow in clay soil in Australia?
Grafted Corymbia ficifolia varieties are more tolerant of heavy soils than seedling-grown specimens, but clay soil remains a significant risk — Corymbia ficifolia is susceptible to Phytophthora root rot in waterlogged or poorly draining conditions, which is the most common cause of failure in clay gardens. If your garden has heavy clay, our strongest recommendation is to raise the planting bed by at least 30–40cm with quality, free-draining soil before planting. Alternatively, choose a position where water drains away quickly after rain. Do not plant in any position where water pools after heavy rain. The Baby varieties and Mini Red, being smaller trees, are somewhat easier to manage in marginal drainage conditions with raised beds.
When does grafted Corymbia flower in Australia?
Most Corymbia ficifolia grafted varieties flower primarily in summer — December through February in most of Australia's temperate zones — with some varieties extending into late autumn. Baby Orange flowers slightly earlier, beginning in late spring (October-November). Mini Red flowers specifically from December through March. Corymbia citriodora Scentuous is the notable exception, flowering in autumn and winter (March through July) with fragrant white flowers. Corymbia ficifolia may also produce a smaller secondary flowering flush in autumn in some years. The main summer flowering period coincides with the hottest and driest period of the Australian year — exactly when the flowering gum's show is most impactful against the summer sky.
How do I maintain the graft union on a Corymbia tree?
Maintaining the graft union is the single most critical ongoing care task for grafted Corymbia. Any shoots that emerge from below the graft union — the swollen join visible on the lower trunk — must be removed immediately and completely. These are growth from the rootstock plant, not from the grafted variety. Rootstock shoots grow vigorously (they are from a large, robust species) and will outcompete the grafted variety if left unchecked, eventually replacing it entirely — at which point you will lose the guaranteed flower colour and compact form. Check the graft union monthly in the first three years and remove any sucker growth flush with the main stem. Do not leave stubs, as these can reshoot. After the first few years, suckering typically reduces significantly.
