Allocasuarina littoralis - Black She Oak

40cm / 45L: Approximately 1.4 m to 2.0 m tall

Please note: These height guides are approximate, as we work with live plants and natural variation is expected. The measurements provided reflect typical stock sizing but may vary between batches.

Size
$250.00
$250.00
Tax included. Shipping calculated at checkout.
A GRADE STOCK, EVERY TIME.

Learn About Your New Allocasuarina littoralis - Black She Oak

Allocasuarina littoralis – Black She Oak is a hardy evergreen native tree suited to a wide range of Australian landscapes. With a mature height of 5 to 8 metres, it develops an upright form with fine, dark green, needle-like foliage and a soft, flowing canopy. Ideal for windbreaks, screening, and erosion control, it also improves soil health through nitrogen-fixing roots.

They look excellent in rural blocks, native gardens, or bushland-style plantings where tough, drought-tolerant structure is needed. Female plants produce red flowers in winter followed by small, woody reddish-brown cones, adding subtle seasonal interest.

Thanks to its adaptability to poor or sandy soils, Allocasuarina littoralis – Black She Oak is commonly used in revegetation projects, low-water gardens, and coastal zones. With minimal maintenance and year-round coverage, Allocasuarina littoralis – Black She Oak delivers strong environmental performance and dependable visual structure without requiring high input.

Plant Profile
Planting & Spacing Tips
Post Planting Care
Tips for Various Soil Types

1. Botanical & Physical Characteristics

BOTANICAL NAME:
Allocasuarina littoralis
GENUS:
Allocasuarina
BOTANICAL SPECIES:
littoralis
COMMON NAME:
Black She Oak
FAMILY:
Casuarinaceae
EVERGREEN / DECIDUOUS:
Evergreen (foliage year round)
FOLIAGE TYPE
  • Fine
FORM & SHAPE
  • Upright
  • Weeping
  • Broad

2. Growth & Environmental Conditions

GROWTH RATE
  • Medium Growth Rate
EXPECTED GROWTH PER YEAR

40 – 70 cm/year

MATURE HEIGHT

5 m – 8 m

MATURE WIDTH

3 m – 5 m

SUNLIGHT EXPOSURE
  • Full Sun
  • Part Shade
FROST TOLERANCE

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

AUSTRALIAN NATIVE?
Yes

3. Practical Uses & Flowering

USES:
  • Screening or Privacy
  • Rural Property Planting
  • Shade Tree
  • Revegetation or Regeneration
  • Council or Civic Landscapes
FLOWER COLOUR
Red
FLOWER TYPE
  • Not Applicable
FLOWERING PERIOD
  • Winter

Planting Tips

Plant Spacing

Hedging & Screening: Plant 3 m – 4 m apart.

Feature Tree: Plant 4 m – 6 m apart to allow upright form.

Avenue Planting Trees: Suitable at 4 m intervals.

Ensuring A Strong Start

How to Plant Allocasuarina littoralis

  1. Location Selection: Ensure a location with full sun to partial shade.
  2. Soil Preference: Adaptable to various soils but thrives in well-draining soil.
  3. Digging: Dig a hole double the width of the root ball.
  4. Planting: Situate the tree in the hole, refill with soil, and press down firmly.
  5. Initial Watering: Soak the planting area thoroughly after setting the tree.

Root Ball Dimensions (Width × Depth) for Planting

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: 49.5cm (W) × 35.2cm (D)
  • 70L Pot: 55cm (W) × 41.8cm (D)
  • 100L Bag: 50.6cm (W) × 52.8cm (D)
  • 100L Pot: 66cm (W) × 49.5cm (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)

Post Planting Care

When planting a new tree or shrub, proper watering is essential to ensure healthy establishment and long-term growth. Follow these guidelines to give your plant the best start:

  1. Immediately After Planting:
    Water generously right after planting to settle the soil around the roots and eliminate air pockets. This helps the roots make good contact with the soil.
  2. First Three Months (Establishment Phase):
    The initial three months are critical for root development. Water deeply twice daily (morning and evening) to encourage strong, deep root growth.
  3. Irrigation Systems:
    If using an irrigation system, adjust it to provide adequate water during the establishment phase. Ensure the water reaches the root zone without overwatering.
  4. Weather Considerations:
    Adjust watering based on weather conditions. Increase frequency during hot, dry periods and reduce it during cooler, wetter seasons.
  5. Ongoing Care:
    After the establishment phase (3 months), gradually reduce watering frequency but ensure the plant receives consistent moisture, especially during dry spells.

Long Term & Ongoing Care

Caring for Allocasuarina littoralis

  • Watering: Regular watering during early growth stages. Once established, the tree is drought-resistant.
  • Mulching: Apply organic mulch around the tree to conserve moisture and suppress weeds.
  • Pruning: Minimal pruning is required. However, you can trim to maintain the desired shape or size.

Growing Your Allocasuarina littoralis - Black She Oak in Various Soil Types

Enhancing Soil for Hardy, Drought-Resistant Growth

Ideal Drainage: Best in well-drained, sandy soils.

Well-Draining Soil: Naturally perfect for this drought-tolerant species.

If you have the following soil, here are some tips for you:

  • Sandy Soil: Naturally ideal, but consider adding organic matter to improve nutrient retention.
  • Clay Soil: Typically challenging for drainage; amend with gypsum and sand to enhance permeability and support healthier growth.
  • Loamy Soil: Good for growth; keep it aerated and well-drained by adding organic material annually.
  • Peaty Soil: Ensure proper drainage with the addition of coarse sand and avoid overwatering.
Here is what customers like you frequently ask

FAQ

What is Allocasuarina littoralis best used for?
A. It’s commonly planted as a windbreak, for screening, and for soil improvement due to its nitrogen-fixing ability.

Q. How tall and wide does it grow?
A. Grows 5 – 8 m tall and 3 – 5 m wide, with a soft, weeping canopy.

Q. Does it flower?
A. Female trees produce small red flowers in winter, though flowers are not showy.

Q. Is it drought tolerant?
A. Yes — it's highly drought hardy once established.

Q. Does it handle coastal and poor soil conditions?
A. Absolutely. It tolerates coastal exposure, poor soils, and helps prevent erosion.

Q. What kind of pruning does it need?
A. Very low maintenance — just light shaping if desired.

Q. What light is best?
A. Full sun to part shade is ideal for healthy growth.

Q. What are its ecological benefits?
A. It fixes nitrogen, supports soil health, and contributes to native biodiversity.

AS FEATURED IN

Not Sure Which Tree to Choose? Let Us Help.
Need Help Selecting Your Perfect Trees? Need Help Selecting Your Perfect Trees? Need Help Selecting Your Perfect Trees? Need Help Selecting Your Perfect Trees? Need Help Selecting Your Perfect Trees?Need Help Selecting Your Perfect Trees?Need Help Selecting Your Perfect Trees?Need Help Selecting Your Perfect Trees?

Find the perfect tree for your space with our expert Tree Finder quiz. Answer a few quick questions, and we'll match you with the best options.

Take Our Tree Finder Quiz
HAVE A PLANT SCHEDULE TO SEND US?

Need Assistance For Your Next Project? Let Us Help.

Evergreen Trees Direct is Australia's unrivaled supplier of the highest quality advanced tree stock. Our extensive supplier network allows us to provide a one-stop shop for all your landscaping needs, no matter how big or small the project. We pride ourselves on exceptional service, ensuring a seamless experience from selection to delivery. Trust us to bring your landscaping vision to life with the perfect trees for any outdoor space. With our unrivaled selection and commitment to service, Evergreen Trees Direct is the top choice for landscapers, property developers, and garden enthusiasts alike.

Submit Your Plant Schedule

Recently Supplied Projects

Get Inspiration