Banksia integrifolia 'Sentinel' - Evergreen Trees Direct
Banksia integrifolia 'Sentinel' - Evergreen Trees Direct
Banksia integrifolia 'Sentinel' - Evergreen Trees Direct
Banksia integrifolia 'Sentinel' - Evergreen Trees Direct
Banksia integrifolia 'Sentinel' - Evergreen Trees Direct
Banksia integrifolia 'Sentinel' - Evergreen Trees Direct
Banksia integrifolia 'Sentinel' - Evergreen Trees Direct
Banksia integrifolia 'Sentinel' - Evergreen Trees Direct
Banksia integrifolia 'Sentinel' - Evergreen Trees Direct
Banksia integrifolia 'Sentinel' - Evergreen Trees Direct
Banksia integrifolia 'Sentinel' - Evergreen Trees Direct
Banksia integrifolia 'Sentinel' - Evergreen Trees Direct
Banksia integrifolia 'Sentinel' - Evergreen Trees Direct
Banksia integrifolia 'Sentinel' - Evergreen Trees Direct
Banksia integrifolia 'Sentinel' - Evergreen Trees Direct
Banksia integrifolia 'Sentinel' - Evergreen Trees Direct
Banksia integrifolia 'Sentinel' - Evergreen Trees Direct
Banksia integrifolia 'Sentinel' - Evergreen Trees Direct
Banksia integrifolia 'Sentinel' - Evergreen Trees Direct
Banksia integrifolia 'Sentinel' - Evergreen Trees Direct
Banksia integrifolia 'Sentinel' - Evergreen Trees Direct
Banksia integrifolia 'Sentinel' - Evergreen Trees Direct
Banksia integrifolia 'Sentinel' - Evergreen Trees Direct
Banksia integrifolia 'Sentinel' - Evergreen Trees Direct
Banksia integrifolia 'Sentinel' - Evergreen Trees Direct
Banksia integrifolia 'Sentinel' - Evergreen Trees Direct
Banksia integrifolia 'Sentinel' - Evergreen Trees Direct
Banksia integrifolia 'Sentinel' - Evergreen Trees Direct
Banksia integrifolia 'Sentinel' - Evergreen Trees Direct
Banksia integrifolia 'Sentinel' - Evergreen Trees Direct
Banksia integrifolia 'Sentinel' - Evergreen Trees Direct
Banksia integrifolia 'Sentinel' - Evergreen Trees Direct
Banksia integrifolia 'Sentinel' - Evergreen Trees Direct
Banksia integrifolia 'Sentinel' - Evergreen Trees Direct
Banksia integrifolia 'Sentinel' - Evergreen Trees Direct
Banksia integrifolia 'Sentinel' - Evergreen Trees Direct
Banksia integrifolia 'Sentinel' - Evergreen Trees Direct
Banksia integrifolia 'Sentinel' - Evergreen Trees Direct
Banksia integrifolia 'Sentinel' - Evergreen Trees Direct

Banksia integrifolia 'Sentinel'

100L: Approx. 2.0-3.9m tall

40cm/45L: Approx. 1.2-1.8m 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
Regular price
$1,200.00
Sale price
$1,200.00
Regular price
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A GRADE STOCK, EVERY TIME.

Learn About Your New Banksia integrifolia 'Sentinel' - Coastal Banksia 'Sentinel'

Banksia integrifolia 'Sentinel' is a compact, upright Coast Banksia variety designed for tight spaces and modern landscapes. Growing 2–3 metres tall and 1–1.5 metres wide, it features dense silvery-green foliage and bold yellow flower spikes from late summer through winter.

Perfect for screening, narrow beds, and contemporary garden design, Banksia integrifolia 'Sentinel' offers year-round structure and cool-season colour. It thrives in coastal settings, adapts to various soils, and requires minimal upkeep once established. This low-maintenance native also supports birds and pollinators, making it a practical and attractive choice for both residential and commercial use.

 

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

1. Botanical & Physical Characteristics

BOTANICAL NAME:
Banksia integrifolia 'Sentinel'
GENUS:
Banksia
BOTANICAL SPECIES:
integrifolia
COMMON NAME:
Coastal Banksia 'Sentinel'
FAMILY:
Proteaceae
EVERGREEN / DECIDUOUS:
Evergreen (foliage year round)
FOLIAGE TYPE
  • Linear
FORM & SHAPE
  • Upright
  • Columnar
  • Narrow

2. Growth & Environmental Conditions

GROWTH RATE
EXPECTED GROWTH PER YEAR

Approx. 40 – 70 cm per year

MATURE HEIGHT

4m - 6m Approximately

MATURE WIDTH

1.5m – 2m

SUNLIGHT EXPOSURE
  • Full Sun
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
  • Revegetation or Regeneration
  • Feature Tree
  • Shade Tree
  • Windbreak
FLOWER COLOUR
Yellow
FLOWER TYPE
  • Fluffy
FLOWERING PERIOD
  • Year-Round

Planting Tips

Plant Spacing

Hedging & Screening: 1.2 m – 2 m – Upright habit suits narrow screening spaces

Feature Tree: 2 m – 3 m – Best for vertical form and year-round foliage

Avenue Planting Trees: 2.5 m – 3 m – Suitable for tighter native avenues

Ensuring A Strong Start

How to Plant Banksia integrifolia 'Sentinel'

  1. Location Selection: Choose a location with well-draining soil and adequate sunlight.
  2. Soil Preparation: Prefers slightly acidic to neutral soil but adapts to various types.
  3. Digging: Prepare a hole twice the size of the plant's root ball.
  4. Planting: Situate the tree in the hole, backfill with soil, and compact gently.
  5. Initial Watering: Water deeply after planting.

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 Banksia integrifolia 'Sentinel'

  • Watering: Ensure regular watering during initial growth, then taper off as the plant establishes.
  • Mulching: Apply mulch around the base to conserve moisture and deter weeds.
  • Pruning: Minimal pruning needed; trim to shape if necessary.

Growing Your Banksia integrifolia 'Sentinel' in Various Soil Types

Optimizing Soil for Robust Growth and Coastal Resilience

Ideal Drainage: Banksia integrifolia 'Sentinel' thrives best in well-drained, sandy soils.

Well-Draining Soil: This soil type is excellent, especially for promoting drought tolerance and coastal resilience.

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

  • Sandy Soil: Ideal for its excellent drainage and aeration. You can enhance its fertility with low-phosphorus, slow-release fertilizers to support more robust growth.
  • Clay Soil: While not ideal, it can certainly support Banksia 'Sentinel' with modifications. Amend heavily with gypsum and coarse sand to improve drainage.
  • Loamy Soil: Good base soil; ensure it remains well-draining and consider adding native compost to provide essential nutrients without overwhelming the plant.
  • Peaty Soil: Ensure proper drainage by incorporating coarse sand or gravel, making it suitable for this Banksia variety.
Here is what customers like you frequently ask

FAQ

Frequently Asked Questions

  • Is 'Sentinel' suitable for small gardens? Yes, its compact nature makes it perfect for limited spaces.
  • Can it withstand coastal conditions? Absolutely, like its parent species, it's resilient to salty winds.
  • What wildlife does it attract? It draws birds, especially those that feed on nectar.

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