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Bursaria spinosa

Bursaria spinosa

Evergreen · Full Sun

Mature size: 2m–10m high × 4m–6m wide

  • Evergreen
  • Full Sun
  • Mature height2m–10m
  • Mature width4m–6m
  • Frost Tolerant
  • Flowers

Most loved for its masses of fragrant white flowers in summer and its dense, spiny evergreen form that makes it an excellent habitat and screening shrub.

Regular price $170.00
Sale price $170.00 Regular price
Tax included. Shipping calculated at checkout.
Pot size
Available batches
Size: 30cm/33cm
Current height guide
Please enquire
Pot size
30cm/33cm

Approximate only. Minimum height important? Confirm with us.

Height guide & disclaimer

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 must confirm 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.

Quantity

Order multiple sizes

Mix pot sizes and batches in one order.

Size / batchEachQuantity
25cmApprox. height: Enquire for current heights$65.00
30cm/33cmApprox. height: Enquire for current heights$170.00
40cm/45LApprox. height: Enquire for current heights$280.00

Height guide & disclaimer

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 must confirm 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.

Subtotal before discounts & delivery$0.00

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    About Bursaria spinosa

    Bursaria spinosa covers itself in sprays of small honey-scented white flowers through summer, filling the garden with fragrance and drawing butterflies, native bees and beneficial insects in unusual numbers. Sweet Bursaria is one of the most important habitat plants in southern Australia.

    Bursaria spinosa grows to 2 to 10 metres tall and 4 to 6 metres wide at 30 to 50 centimetres per year, with the size depending heavily on conditions. Dense spiny branching makes it an effective stock-proof and intruder-resistant screen, and provides protected nesting habitat for small birds.

    This Australian native tolerates light to moderate frost once established, along with poor soils, extended dry and coastal exposure. It grows in full sun and is a mainstay of revegetation, shelterbelt and biodiversity planting across southern Australia.

    Frequently Asked Questions

    About Bursaria spinosa

    How big does Bursaria spinosa grow?

    Bursaria spinosa is variable, ranging from a 2 metre shrub in exposed dry sites to a 10 metre small tree in sheltered fertile conditions, spreading 4 to 6 metres wide.

    Is Bursaria spinosa an Australian native?

    Yes. It is native across much of southern and eastern Australia and is a key species in grassy woodland and dry forest communities.

    When does Sweet Bursaria flower?

    Sprays of small honey-scented white flowers appear through summer. The fragrance is noticeable from some distance and the display lasts several weeks.

    Does Bursaria spinosa attract butterflies?

    Yes. It is one of the most important butterfly plants in southern Australia and is the critical food plant for the endangered Eltham Copper Butterfly.

    Is it suitable as a security or stock-proof hedge?

    Yes. The dense spiny branching forms an effective barrier, which is why it has traditionally been used as a stock-proof hedge on rural properties.

    Is Bursaria spinosa frost tolerant?

    It handles light to moderate frost once established, and tolerates poor soils, extended dry and coastal exposure with no ongoing maintenance.

    How far apart should I plant it for a screen?

    Plant 2 to 3 metres apart for a dense habitat screen or shelterbelt, or 4 to 5 metres apart where individual plants should develop fully.

    Key growing information
    Mature height2m to 10m (approx.)
    Mature width4m to 6m
    PositionFull Sun
    Growth per year30cm to 50cm per year (approx.)
    FrostFrost Tolerant
    FoliageEvergreen (foliage year round)
    FormShrub · Upright
    UsesScreening or Privacy · Rural Property Planting · Revegetation or Regeneration
    Foliage

    Evergreen (foliage year round)

    Position
    • Full Sun
    Form
    • Shrub
    • Upright
    Use
    • Screening or Privacy
    • Rural Property Planting
    • Revegetation or Regeneration
    Mature height
    2m to 10m (approx.)
    Mature width
    4m to 6m
    Bursaria spinosa

    Planting Information

    How To Plant Your Bursaria spinosa

    Site: Choose a well-drained position in full sun to part shade with room for the canopy to develop.

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

    Hole: Dig twice as wide as the root ball and the same depth.

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

    Recommended Planting Spacing For Your Bursaria spinosa

    Hedging and screening: 1 to 1.5 metres apart for a dense informal screen, or 80 centimetres apart for a tighter formal hedge.

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

    Bursaria spinosa is expected to grow 30cm to 50cm per year (approx.).

    • Medium Growth Rate

    Long Term Care For Your Bursaria spinosa

    Watering: Water deeply twice weekly through the first 12 months. Once established, this is drought tolerant and only needs a deep soak during extended dry periods.

    Mulching: Apply a 5 to 7 centimetre layer of organic mulch over the root zone, keeping it 5 centimetres clear of the trunk.

    Pruning: Tip prune in late winter and again in summer to build dense growth. For a formal hedge, light shaping two to three times a year keeps lines crisp.

    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 inspection in warm humid conditions is all that's needed.

    Planting Your Bursaria spinosa in Different Soil

    Bursaria spinosa 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.

    Bursaria spinosa

    Uses in my Garden

    Uses in my Garden

    • Screening or Privacy
    • Rural Property Planting
    • Revegetation or Regeneration

    Bursaria spinosa works in an:

    • Australian Native Garden – celebrates local plants with natural character.
    • Wildlife Garden – planting to attract birds, bees, and pollinators.
    • Low-maintenance Garden – resilient choices for easy care and year-round appeal.

    Is Bursaria spinosa Evergreen or Deciduous?

    Bursaria spinosa is an Evergreen (foliage year round) Tree

    Mature Height & Width

    Mature Height: 2m to 10m (approx.)

    Mature Width: 4m to 6m

    Bursaria spinosa is expected to grow 30cm to 50cm per year (approx.).

    Growth Rate of Bursaria spinosa

    Bursaria spinosa is expected to grow 30cm to 50cm per year (approx.).

    They are considered to have a:

    • Medium Growth Rate

    Frost Tolerance & Ideal Climate to plant Bursaria spinosa

    Is Bursaria spinosa frost tolerant?

    Bursaria spinosa is Frost Tolerant – Can handle light to moderate frost once established.

    Does Bursaria spinosa Flower?

    Bursaria spinosa produces masses of small, star-shaped white flowers from summer through early autumn. These fragrant blooms cluster along the branch tips, creating a delicate yet generous seasonal display that brightens the warm months.

    Does Bursaria spinosa flower?

    • Yes - Flowers

    Flowering Period:

    • Summer

    Flower Type:

    • Fragrant

    Flower Colour:

    White

    Is Bursaria spinosa an Australian Native Tree?

    Yes

    Bursaria spinosa is Native to Widespread across Australia, from Queensland through New South Wales, Victoria, South Australia, and Tasmania, where it grows in open forests, woodlands, and grasslands.

    What is the Wildlife Value of Bursaria spinosa ?

    Its nectar-rich flowers attract native bees, hoverflies, butterflies and other pollinators, while the dense, prickly branching provides excellent nesting habitat for small birds. It is especially valued as a host plant for several native butterfly species, contributing strongly to biodiversity.

    How much Sunlight does Bursaria spinosa need?

    Bursaria spinosa will thrive best in:

    • Full Sun

    Preferred Soil?

    Bursaria spinosa performs best in well-drained sandy or loam soils and tolerates slightly acidic to slightly alkaline conditions. It can manage poorer soils but may struggle in heavy clay or waterlogged sites unless improved with organic matter to enhance drainage. Keep soil evenly moist during establishment, then reduce watering as the tree matures and develops its characteristic high drought resilience.

    Is Bursaria spinosa Drought Tolerant?

    Is Bursaria spinosa Drought tolerant?

    As a young tree it benefits from regular watering, but once established Bursaria spinosa develops excellent drought tolerance. It thrives in dry, low-maintenance gardens and maintains its dense, bushy form with minimal supplementary watering.

    Bursaria spinosa

    Frequently Asked Questions

    Frequently Asked Questions

    Frequently Asked Questions

    • What attracts butterflies to Bursaria spinosa? The sweetly fragrant flowers of the Sweet Bursaria are known to attract a variety of butterflies.
    • Is it suitable for coastal gardens? Yes, the Australian Blackthorn is tolerant of coastal conditions, making it ideal for seaside gardens.
    • Can it thrive in shaded areas? While it prefers full sun, it can also grow in partial shade.
    Bursaria spinosa

    Compare sizes side by side

    25cm

    Enquire for current heights

    30cm/33cm

    Enquire for current heights

    40cm/45L

    Enquire for current heights

    Heights are approximate and vary between individual trees.

    Bursaria spinosa is loved for its masses of fragrant white flowers in summer and its dense, spiny evergreen form that makes it an excellent habitat and screening shrub.

    We take pride in supplying A+ grade advanced trees. When stock at our farm is not yet ready, we work with our trusted trade suppliers to source the best available trees for your garden.

    Plant Your Bursaria spinosa With:

    Enriched Planting Mix (AO Certified)

    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.

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