Casuarina 'Green Waves'

40cm / 45L: 1.9m – 2.4m
30cm / 33cm: 0.3m – 0.35m

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
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A GRADE STOCK, EVERY TIME.

Learn About Your New Casuarina sp. (cultivar 'Green Waves') - Green Waves Sheoak

Casuarina glauca 'Green Waves' is an evergreen Australian native shrub valued for its deep green, fine, needle-like foliage and naturally rounded, dense form. This low-maintenance plant reaches around 2 meters tall and wide, making it excellent for screening, hedging, or as a standalone feature.

They look excellent in coastal and urban gardens where robust, drought-tolerant plants are needed. Thriving in full sun to part shade and adaptable to various soils—including heavy clay—'Green Waves' offers year-round structure with minimal care.

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

1. Botanical & Physical Characteristics

BOTANICAL NAME:
Casuarina sp. (cultivar 'Green Waves')
GENUS:
Casuarina
BOTANICAL SPECIES:
Green Waves
COMMON NAME:
Green Waves Sheoak
FAMILY:
Casuarinaceae
EVERGREEN / DECIDUOUS:
Evergreen (foliage year round)
FOLIAGE TYPE
  • Fine
FORM & SHAPE
  • Upright
  • Weeping

2. Growth & Environmental Conditions

GROWTH RATE
EXPECTED GROWTH PER YEAR

Approx. 60 – 90 cm per year

MATURE HEIGHT

0.8cm - 1m Approximately

MATURE WIDTH

1.5m – 2.0m

SUNLIGHT EXPOSURE
  • Full Sun
FROST TOLERANCE

Frost Hardy – Survives heavy and frequent frost without damage.

AUSTRALIAN NATIVE?
Yes

3. Practical Uses & Flowering

USES:
  • Screening or Privacy
  • Shrubs
  • Rural Property Planting
  • Revegetation or Regeneration
  • Plant in Pots (or) Suitable for Pots
  • Underplanting
FLOWER COLOUR
Not Applicable
FLOWER TYPE
  • Not Applicable
FLOWERING PERIOD

Planting Tips

Plant Spacing

Hedging & Screening: Plant 1 m apart for a soft, textured hedge.

Feature Tree: 1.5 m – 2 m apart to let the form spread.

Avenue Planting Trees: Not typically used.

Ensuring A Strong Start

Planting Tips: Ensuring a Strong Start

Site Selection: Full sun to partial shade with well-drained soil.​

Digging the Hole: Twice as wide as the root ball but no deeper.​

Planting: Position the shrub so the top of the root ball is at ground level. Backfill with native soil and water thoroughly.​

Mulching: Apply a 5–7 cm layer of mulch around the base to retain moisture and suppress weeds. Keep mulch away from the trunk.​

Watering: Deep watering during the first year to establish strong roots.​

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 Your Tree

Watering: Regular watering for young plants; mature shrubs are drought-tolerant but benefit from occasional watering during extended dry periods.​

Fertilizing: Generally does not require heavy fertilization; a balanced, slow-release fertilizer in early spring can encourage healthy growth.​

Pruning: Minimal pruning is needed; can be trimmed to maintain shape or size as desired.​

Pest & Disease Monitoring: Generally resistant to pests and diseases; ensure proper air circulation to prevent potential issues.

Growing Your Casuarina 'Green Waves' in Various Soil Types

Enhancing Soil for Durable and Wind-Resistant Growth

Ideal Drainage: Prefers well-drained, sandy soils.

Well-Draining Soil: Perfect for Casuarina, promoting healthy root development and wind resistance.

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

  • Sandy Soil: Naturally ideal; maintain nutrient levels with regular applications of slow-release fertilizers.
  • Clay Soil: Not typically suitable; heavily amend with gypsum, sand, and compost for better drainage.
  • Loamy Soil: Ensure it is well-draining; amend with organic materials to keep it aerated and conducive for growth.
  • Peaty Soil: Mix in sand for improved drainage; Casuarinas need well-aerated soil to thrive.
Here is what customers like you frequently ask

FAQ

Q: How much sun does Casuarina 'Green Waves' need?
A: It performs best in full sun to part shade, allowing flexibility in garden placement.

Q: Is Casuarina 'Green Waves' suitable for small gardens?
A: Yes, with its compact growth habit, it is ideal for small to medium-sized gardens and can be used effectively in confined spaces.

Q: What maintenance does Casuarina 'Green Waves' require?
A: It requires very little maintenance, mainly occasional watering during prolonged dry periods and minimal pruning to maintain shape if desired.

Casuarina 'Green Waves' is an excellent choice for gardeners looking for a durable, attractive, and easy-care addition to their landscape​

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