Stenocarpus sinuatus – Firewheel Tree - Evergreen Trees Direct

Stenocarpus sinuatus – Firewheel Tree

$180.00

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Size: 30cm/33cm

30cm/33cm 40cm/45L 100L 200L 400L

Current Stock Height Guides

40cm/45L: 1.3m – 1.5m Approx.

Height guide disclaimer: Height ranges are approximate only. As living products, plant heights naturally vary between individual plants, batches, and seasons. No guarantee is given that supplied plants will fall within the stated range. If minimum heights are required, you mustconfirm current batch heights with Evergreen Trees Direct prior to purchase. Variation in height is normal and is not grounds for return, refund, replacement, or compensation.

Mature Height & Width

Mature Height: 10m to 15m

Mature Width: 5m to 8m

Stenocarpus sinuatus – Firewheel Tree is expected to grow 0.5m to 1m per year (moderate grower).

Root Ball Dimensions

Use this as a reference when digging your planting hole. We recommend digging at least 10% wider than the dimensions below to encourage strong root development.

30cm Pot: 33cm (W) × 30cm (D)
40cm/45L Pot: 44cm (W) × 41.5cm (D)
50cm Pot / 70L Pot: 55cm (W) × 41.8cm (D)
100L Bag: 50.6cm (W) × 52.8cm (D)
150L Bag: 66cm (W) × 55cm (D)
200L Bag: 71.5cm (W) × 60.5cm (D)
300L Bag: 88cm (W) × 63.8cm (D)
400L Bag: 99cm (W) × 66cm (D)
500L Bag: 122cm (W) × 66cm (D)
750L Bag: 134cm (W) × 69cm (D)
1000L Bag: 146.3cm (W) × 71.5cm (D)
2000L Bag: 176cm (W) × 82.5cm (D)

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Email: sales@evergreentrees.com.au

Phone: (03) 7042 3318

About Your New Stenocarpus sinuatus – Firewheel Tree

Stenocarpus sinuatus, the Firewheel Tree, is an Australian native from the Proteaceae family with a rounded, upright crown. The glossy dark green leaves are broad and often deeply lobed, giving it a tropical look, and from late summer into autumn it carries circular clusters of scarlet flowers arranged like spokes on a wheel.

It grows to about 8 to 12 metres tall and 4 to 6 metres wide, adding 30 to 50 centimetres a year. Full sun suits it best, though young trees appreciate part shade. Deep, fertile, well drained soil is important. Warm temperate, subtropical and tropical districts suit it, and young plants are frost sensitive.

It works as a feature tree in larger gardens, in parks and civic landscapes, and as an avenue or street tree where the autumn flowers can be seen at close range. The bold foliage carries tropical and subtropical planting schemes. Flowers are nectar rich, so birds arrive as soon as the tree matures.

Frequently Asked Questions

About Firewheel Tree

What is the Firewheel Tree?

Stenocarpus sinuatus is an evergreen rainforest tree native to the east coast of Queensland and northern New South Wales. It belongs to the Proteaceae, the same family as grevilleas and banksias, and takes its common name from the wheel shaped clusters of red flowers it produces once mature. The glossy lobed foliage is ornamental in its own right.

How big does the Firewheel Tree grow?

Mature trees reach roughly 8 to 12 metres in height with a canopy 4 to 6 metres across, forming a rounded and fairly upright shape. In cultivation it usually stays at the lower end of that range, particularly in cooler districts. It is slower and more restrained than most rainforest trees of similar final size.

When does it flower?

Flowering runs from late summer into autumn, broadly February through to April, with the heaviest display in warm years. The flowers open in tight circular clusters of bright red, often held inside the canopy as well as on the outside. Trees usually need several years in the ground before they flower reliably.

Is it frost tolerant?

It tolerates light to moderate frost once established, but young plants are easily damaged by cold and should be protected through their first few winters. In frost prone districts choose a sheltered position with overhead cover from larger trees or a warm north facing wall. It is not suited to areas with heavy or repeated frosts.

Does it need sun or shade?

Full sun gives the best flowering and the densest canopy. Young trees grow happily in part shade, and in habitat they begin life beneath a rainforest canopy, so some protection early on is natural for the species. In hot inland positions, afternoon shade while the tree establishes reduces stress on the foliage.

Where does it grow best in Australia?

It performs best in subtropical and warm temperate coastal regions, from far north Queensland down through Brisbane, the Northern Rivers and into Sydney. It will grow in Perth and in sheltered parts of Melbourne given good drainage and frost protection. Deep fertile soil and reliable summer moisture matter more than latitude.

How do I care for a Firewheel Tree?

Keep the root zone mulched and water regularly through the first two summers. Feed in spring with a low phosphorus native fertiliser, since members of the Proteaceae are sensitive to high phosphorus. Prune only lightly to shape the crown and lift lower branches, ideally after flowering finishes. Once established it needs little beyond a deep watering in dry spells.

Enriched Planting Mix (AO Certified)

$21.95

Enriched Planting Mix is a certified organic blend of Pure Magic Compost, composted animal manure, gypsum, composted coarse bark and a wetting agent, bagged in 30L. It is built to be dug through existing garden soil at planting time rather than used on its own, and the gypsum is what sets it apart from a plain compost.

Gypsum helps break up heavy clay so water and roots can move through it, while the compost and manure return organic matter and nutrient to tired ground. The coarse bark holds structure and keeps air around the root zone, and the wetting agent keeps moisture in the soil longer after rain or watering.

Use it when planting trees, shrubs, roses, fruit trees and exotic garden plants, particularly into clay. Dig a hole twice the width of the pot and 7 centimetres deeper, then mix roughly one third planting mix through the excavated soil. Spread 7 centimetres of that improved soil in the base before setting the plant in.

Frequently Asked Questions

About Enriched Planting Mix

What is Enriched Planting Mix made from?

It is a blend of Pure Magic Compost, composted animal manure, gypsum, composted coarse bark and a wetting agent. Each part has a job. The compost and manure supply organic matter and nutrient, the gypsum works on clay structure, the bark keeps air around the roots and the wetting agent holds moisture in the soil.

What plants is it suitable for?

It suits exotic garden plants, including roses, ornamental and deciduous trees, fruit trees, shrubs and perennials, and it earns its keep most on heavy clay sites. It is a planting mix rather than a potting mix, so its job is improving soil at planting time. Phosphorus sensitive natives are the one clear exception.

Is it safe for natives?

No, not for the phosphorus sensitive ones. The composted animal manure in this blend lifts phosphorus well above what Proteaceae such as Banksia, Grevillea, Hakea and Protea will tolerate, and the result can be leaf burn, dieback and plant death. Use the Native Potting Mix for those species, or plant them into unimproved local soil.

Is it certified organic?

Yes. It is a certified organic product with no chemical additives, which is why the manure and compost in it are fully composted rather than raw. That makes it sound around fruit trees and vegetable beds, and it means you are adding genuine organic matter to your soil rather than a synthetic conditioner.

How much do I need?

Work on roughly one third planting mix to two thirds of the soil you dug out of the hole. For a shrub out of a 200 millimetre pot that is only a few litres. An advanced tree going into a large hole will take considerably more. Judge the quantity by the volume of the hole rather than the size of the plant.

Can I use it in pots?

It is not a potting mix and should not be used on its own in a container. The blend is designed to be diluted through garden soil, and used straight in a pot it holds too much water and settles badly. For containers, reach for a premium potting mix, or the native mix if you are potting natives.

Does it need to be watered in?

Yes. Water the plant well several hours before you plant it, then water thoroughly again once the hole is backfilled and the soil firmed down. That first deep watering settles the improved soil around the root ball and drives out air pockets. Keep the water up over the first few months while the roots establish.

View full details

Type: Garden Supplies

Enriched Planting Mix (AO Certified)

$21.95

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Uses in my Garden

Feature Tree
Street Tree
Avenue Planting
Council or Civic Landscapes

Stenocarpus sinuatus – Firewheel Tree works in an:

Australian Native Garden – celebrates local plants with natural character.
Tropical Garden – lush, leafy planting for a resort-style atmosphere.
Modern Garden – sleek, minimal, and design-led planting.
Wildlife Garden – planting to attract birds, bees, and pollinators.

Is Stenocarpus sinuatus – Firewheel Tree Evergreen or Deciduous?

Stenocarpus sinuatus – Firewheel Tree is an Evergreen (foliage year round) Tree

Mature Height & Width

Mature Height: 10m to 15m

Mature Width: 5m to 8m

Stenocarpus sinuatus – Firewheel Tree is expected to grow 0.5m to 1m per year (moderate grower).

Growth Rate of Stenocarpus sinuatus – Firewheel Tree

Stenocarpus sinuatus – Firewheel Tree is expected to grow 0.5m to 1m per year (moderate grower).

They are considered to have a:

Medium Growth Rate

Frost Tolerance & Ideal Climate to plant Stenocarpus sinuatus – Firewheel Tree

Is Stenocarpus sinuatus – Firewheel Tree frost tolerant?

Stenocarpus sinuatus – Firewheel Tree is Frost Tolerant – Can handle light to moderate frost once established.

Does Stenocarpus sinuatus – Firewheel Tree Flower?

Stenocarpus sinuatus produces spectacular, bright orange-red, wheel-shaped flower clusters in summer and early autumn. These uniquely arranged blossoms sit among the glossy green foliage and create an extraordinary ornamental display, making the Firewheel Tree one of the most distinctive flowering natives for Australian gardens.

Does Stenocarpus sinuatus – Firewheel Tree flower?

Yes - Flowers

Flowering Period:

Summer
Autumn

Flower Type:

Clustered
Pollinator-attracting

Flower Colour:

Red

Is Stenocarpus sinuatus – Firewheel Tree an Australian Native Tree?

Yes

Stenocarpus sinuatus – Firewheel Tree is Native to Native to subtropical and tropical rainforests of eastern Australia, from northern New South Wales through coastal Queensland.

What is the Wildlife Value of Stenocarpus sinuatus – Firewheel Tree ?

Its striking wheel-shaped flowers provide an excellent nectar source for native bees, honeyeaters and beneficial insects, while the dense evergreen canopy offers shelter and foraging habitat for small birds. The combination of nectar, structure and year-round foliage makes the Firewheel Tree a valuable contributor to biodiversity in both suburban and coastal gardens.

How much Sunlight does Stenocarpus sinuatus – Firewheel Tree need?

Stenocarpus sinuatus – Firewheel Tree will thrive best in:

Full Sun
Part Shade

Preferred Soil?

Stenocarpus sinuatus performs best in well-drained loam or sandy loam soils with an acidic to neutral pH. It will also tolerate lighter sandy soils if enriched with organic matter to support moisture retention and long-term health. Avoid heavy clay, compacted or waterlogged conditions unless significantly improved, as poor drainage can restrict root development and reduce flowering. Keep the soil evenly moist during establishment, then gradually reduce watering as the tree matures.

Is Stenocarpus sinuatus – Firewheel Tree Drought Tolerant?

Is Stenocarpus sinuatus – Firewheel Tree Drought tolerant?

As a young tree it requires regular watering to establish a strong root system. Once established, Stenocarpus sinuatus develops moderate drought tolerance and performs reliably through warm, dry periods when planted in well-drained soil. Occasional supplementary watering during extended hot spells will support optimal flowering and overall vigour.

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How To Plant Your Stenocarpus sinuatus – Firewheel Tree

Site: Choose a well-drained position in full sun with good air movement and room for the canopy to develop.

Soil preparation: Enrich the planting area with quality compost and a light dressing of aged manure for a strong establishment phase.

Hole: Dig twice as wide as the root ball and the same depth, avoiding any low spot where water might pool.

Planting: Position level with the surrounding soil, backfill gently, firm in, then water deeply to settle the roots.

Recommended Planting Spacing For Your Stenocarpus sinuatus – Firewheel Tree

Feature tree: 3 to 4 metres apart to allow the full canopy and form to develop.

Avenue planting: 3 metres apart for a uniform soft-textured avenue.

Stenocarpus sinuatus – Firewheel Tree is expected to grow 0.5m to 1m per year (moderate grower).

Medium Growth Rate

Long Term Care For Your Stenocarpus sinuatus – Firewheel Tree

Watering: Water deeply twice weekly through the first 12 months. Once established, reduce to once weekly in dry periods. Mulch helps maintain consistent moisture.

Mulching: Apply a 5 centimetre layer of organic mulch or pine bark over the root zone, keeping it 5 centimetres clear of the trunk to avoid waterlogging at the base.

Pruning: Minimal pruning required. Light tip prune in late winter to maintain shape, and remove lower branches as the tree grows to develop a clean feature trunk.

Fertilising: Apply a slow-release native blend in early spring and again in autumn. Avoid high-phosphorus formulations as a precaution.

Pest and disease: Hardy against most pests and diseases. Occasional scale or caterpillar inspection in warm humid conditions is all that's needed.

Planting Your Stenocarpus sinuatus – Firewheel Tree in Different Soil

Stenocarpus sinuatus performs best in well-drained sandy loam or loam with a slightly acidic to neutral pH. Adaptable to a wide range of soils when drainage is improved with organic matter.

Sandy soil: Free-draining and ideal. Mulch well to maintain consistent moisture.

Clay soil: Improve drainage with gypsum and organic compost before planting.

Loam: The preferred soil for steady root development and consistent growth.

pH: Slightly acidic to neutral preferred. Mulch with composted leaf litter to maintain levels naturally.