12 Australian native plants with brilliant orange flowers
Orange is one of the most unusual colours in the Australian native flora. The plants that produce it often sit at the boundary between red and yellow rather than at a clean midpoint. The reason comes down to pollination biology. Most orange-flowered natives are pollinated by honeyeaters. These birds have colour vision strongly biased toward the red-orange spectrum. The evolutionary pressure this creates pushes flowers toward red.
Orange in the Australian flora — a colour that appears across very different plant families and flower forms, from the tubular bells of Christmas bells to the feathered spikes of kangaroo paw.
This means that true orange produces no additional advantage for the plant, so it tends to be unstable across seed generations and variable within species. The plants that have reliably fixed it are found predominantly in south-west WA, where evolutionary isolation has produced flower forms found nowhere else on earth.
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Orange marianthus (Marianthus ringens)
Climbing or scrambling perennialMediterranean WA
Murray Fagg, CC BY 3.0 AU, via Wikimedia Commons
Orange marianthus (Marianthus ringens) — pendant orange-red bells on a scrambling WA climber; almost entirely unknown outside south-west WA despite being among the most rewarding natives for covering a fence, bank or garden structure.
Marianthus ringens is a scrambling climber from south-west WA that produces vivid orange-red pendant bells through late winter and spring. Despite being among the most striking small climbers in the Australian flora, it is almost entirely absent from mainstream garden content. In its preferred conditions — sandy, well-drained soil and a Mediterranean climate — it scrambles energetically and flowers prolifically.
Coral vine (Kennedia coccinea)
Climbing or trailing groundcoverWA and SA
pimelea, CC BY 4.0, via Wikimedia Commons
Coral vine (Kennedia coccinea) — clusters of small coral-orange pea flowers through spring on a vigorous climber or trailing groundcover; one of the most orange of the kennedias and one of the most striking WA wildflowers.
Kennedia coccinea is the most genuinely orange of the kennedias. It climbs or trails freely, handling dry slopes, sandy soils and coastal exposure in WA and SA. In spring the flowering is prolific enough to transform a fence, bank or pergola in coral-orange for several weeks. Less commonly seen than Kennedia rubicunda in eastern states, which makes it a more interesting choice for WA gardeners looking for something less expected.
Heart-leaf flame pea (Chorizema cordatum)
Shade-tolerant scrambling shrubTemperate to subtropical east coast
Heart-leaf flame pea (Chorizema cordatum) — orange-red pea flowers with yellow centres on holly-like heart-shaped leaves; one of the most effective orange-flowering plants for shaded positions where most colour plants fail.
Chorizema cordatum solves a specific problem in the orange-flowering plant list: it handles shade. Chorizema produces its striking orange-red and yellow pea flowers through winter and spring in positions that would defeat most other flowering plants. The heart-shaped, holly-edged leaves are attractive year-round and the scrambling habit fills gaps naturally. Prune lightly after flowering to keep it tidy.
Red flowering gum (Corymbia ficifolia) — orange forms
Flowering treeTemperate to warm temperate
Red flowering gum (Corymbia ficifolia) in orange form — when the entire canopy saturates with deep orange flower clusters in summer it is one of the most spectacular displays of any Australian tree in cultivation.
Corymbia ficifolia produces flowers across a range from white through pink, red, orange and deep scarlet. The challenge is that colour is seed-variable: trees grown from seed may produce any colour in the range and the only reliable way to guarantee orange is to purchase a grafted cultivar selected for that colour. In gardens, Corymbia ficifolia performs best in temperate and warm temperate climates with good drainage. Once established it is drought tolerant and long-lived.
Grevillea 'Orange Marmalade'
Flowering shrubWide climate range
Grevillea 'Orange Marmalade' — one of the most reliably orange cultivars available in the genus; spider flowers through most of the year attract honeyeaters and provide the widest climate coverage of any plant on this list.
Grevillea 'Orange Marmalade' produces an orange spider flower across a wide climate range and through most of the year. It handles full sun, dry conditions and poor soils reliably, attracts honeyeaters almost continuously and stays compact enough for most garden positions. It suits temperate, warm temperate and subtropical gardens, making it the most broadly applicable orange-flowering native on this list. Prune lightly after the main flowering flush to maintain density.
Fuchsia bush (Eremophila glabra)
Dry-zone flowering shrubDry temperate to arid
Fuchsia bush (Eremophila glabra) — tubular orange-red flowers over a long season in dry and arid gardens; one of the most adaptable eremophilas and the most reliably orange-flowering option for inland zones.
Eremophila glabra is one of the most variable eremophilas in both form and flower colour — it ranges from prostrate groundcover to upright shrub and the flowers span red, orange, yellow and greenish-cream depending on the form. The orange-flowered forms, particularly 'Coral Carpet' and 'Outback Sunrise', are among the most useful dry-zone flowering plants available. For gardeners in dry inland zones, this is the one to start with.
Why orange is rare in the Australian flora
Flower colour in plants is determined by pigments, primarily anthocyanins (reds and purples) and carotenoids (yellows and oranges) and by the ratio in which they combine. Orange requires both pigment families to be expressed simultaneously in a precise balance, which is genetically unstable and tends to drift toward red or yellow across seed generations. The plants that reliably fix orange tend to do so either through vegetative propagation (grafted cultivars) or through long evolutionary isolation in stable environments.
Acorn banksia (Banksia prionotes)
Structural shrub to treeMediterranean WA
Acorn banksia (Banksia prionotes) — the long orange flower spikes that open progressively from the base are one of the most architecturally striking in the genus; a major nectar source for birds and insects through autumn and winter.
Banksia prionotes produces long, cylindrical orange flower spikes that open progressively from the base giving it the appearance of an acorn in the early stages. The fully open spikes are a vivid warm orange and are among the most architecturally distinctive in the banksia genus. In WA gardens with sandy, well-drained soil it establishes reliably and becomes a significant nectar resource for honeyeaters and nectarivorous mammals.
Ashby's banksia (Banksia ashbyi)
Arid-zone flowering shrubInland WA and arid SA
Tatters from Brisbane, Australia, CC BY-SA 2.0, via Wikimedia Commons
Ashby's banksia (Banksia ashbyi) — among the most vividly orange flower spikes in the genus; adapted to dry inland and arid conditions where most banksias do not perform, and dramatically different in habit from the coastal Banksia prionotes.
Banksia ashbyi produces some of the most vivid orange flower spikes in the genus. It handles full exposure, sandy soils, low rainfall and alkaline conditions reliably. In the garden, it requires the same approach as most inland banksias: excellent drainage, no phosphorus fertiliser and minimal intervention once established. The large, deeply serrated leaves are attractive year-round and the flower spikes attract honeyeaters and nectarivorous mammals when little else is flowering in dry inland gardens.
Fern-leaf grevillea (Grevillea pteridifolia)
Tropical flowering shrub to treeTropical north
Fern-leaf grevillea (Grevillea pteridifolia) — long, arching golden-orange spider flowers against finely divided fern-like foliage; one of the most visually extraordinary grevilleas and the strongest orange option for tropical gardens.
Grevillea pteridifolia produces long, arching sprays of golden-orange spider flowers that are among the most dramatic of any grevillea. The finely divided, fern-like foliage is as distinctive as the flowers. It is a plant of the tropical north — NT, Cape York and northern WA — and performs best in climates with a distinct dry season, reliable warmth and excellent drainage. In tropical and warm temperate gardens it establishes quickly and requires minimal maintenance.
Golden everlasting (Xerochrysum bracteatum) — orange forms
Annual to short-lived perennialTemperate to subtropical, wide range
Golden everlasting (Xerochrysum bracteatum) in orange form — papery bracts in a warm, saturated orange; one of the most widely available and climate-adaptable orange-flowering natives, and among the easiest to establish from seed.
Xerochrysum bracteatum produces papery, long-lasting flowers and the cultivars, particularly 'Cockatoo' and 'Cinnamon', read as a genuine warm orange. They are available from seed, easy to establish, tolerant of a wide range of soils and climate conditions and hold their colour and form when dried. In a garden context they work best as seasonal colour fillers to self-seed reliably in subsequent seasons.
Kangaroo paw 'Bush Ranger' (Anigozanthos)
Perennial cultivarTemperate to Mediterranean WA
Kangaroo paw 'Bush Ranger' (Anigozanthos) — deep orange flower spikes on a compact, disease-resistant cultivar; one of the most reliable kangaroo paw options for temperate gardens outside WA.
Kangaroo paw cultivars bred for orange flowers include 'Bush Ranger', which produces deep orange-red spikes on a compact plant with good resistance to ink disease. 'Bush Ranger' handles the humidity of temperate east coast gardens better than most. It flowers through spring and into summer, attracts honeyeaters reliably and stays compact enough for garden beds, pots and border plantings. Divide clumps every two to three years to maintain vigour.
Morrison's featherflower (Verticordia nitens)
WA wildflower shrubMediterranean WA only
Jean and Fred Hort from Perth, Australia, CC BY 2.0, via Wikimedia Commons
Morrison's featherflower (Verticordia nitens) — vivid orange-yellow flowers with the characteristic feathered petal structure of the verticordia genus; one of the most spectacular WA wildflowers and one of the most demanding in cultivation.
Verticordia nitens produces orange flowers with the characteristic feathered, fringed petal structure that makes the verticordias among the most extraordinary flowering shrubs in the Australian flora. In cultivation it is demanding: precise drainage, sandy or gravelly soil with no clay, very low phosphorus and Mediterranean conditions are all non-negotiable. For WA gardeners with the right soil and climate, it is one of the most beautiful and unusual flowering shrubs that can be grown.
Orange in the garden: how to use it
Used sparingly, orange provides the warmest focal point of almost any colour in the native palette. The most effective approach is to treat it as an accent rather than a base, with orange appearing seasonally rather than continuously.
Orange as a garden accent — used sparingly against greens and silvers rather than in mass, it becomes the warmest focal point of any native planting.
For companion planting, combine it against blue and dark foliage — complementary contrasts that intensify the colour rather than competing with it. Against silver-grey foliage and native grasses it reads as warm without overwhelming. Against yellow it creates an analogous scheme that suits naturalistic plantings well.
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A Guide to Australian Native Gardening
How to plan, plant and care for a thriving native garden, whatever your experience level.
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