Magnolia Exmouth Cones

100L: Approx. 2.1m

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
$1,800.00
$1,800.00
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A GRADE STOCK, EVERY TIME.

Learn About Your New Magnolia grandiflora 'Exmouth' - Exmouth Southern Magnolia

Magnolia grandiflora 'Exmouth', known as Exmouth Southern Magnolia, is an elegant evergreen tree distinguished by its cone-shaped topiary form, making it a striking feature in any garden or landscape. It grows 10–20 meters tall with a 4–8 meter wide dense canopy.

This variety showcases large, glossy dark green leaves with bronze undersides and produces creamy white, fragrant flowers up to 30 cm in diameter during summer. Its formal, precise cone shape is perfect for topiary gardens, specimen planting, and avenues.

Thriving in full sun to part shade and adaptable to various well-drained soils, Exmouth Southern Magnolia adds vertical interest and year-round beauty to large spaces.

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

1. Botanical & Physical Characteristics

BOTANICAL NAME:
Magnolia grandiflora 'Exmouth'
GENUS:
Magnolia
BOTANICAL SPECIES:
Magnolia grandiflora
COMMON NAME:
Exmouth Southern Magnolia
FAMILY:
Magnoliaceae
EVERGREEN / DECIDUOUS:
Evergreen (foliage year round)
FOLIAGE TYPE
  • Broad
FORM & SHAPE
  • Upright
  • Topiary Form

2. Growth & Environmental Conditions

GROWTH RATE
  • Medium Growth Rate
EXPECTED GROWTH PER YEAR

Approx 20 – 40 cm per year (moderate)

MATURE HEIGHT

10m - 15m Approximately

MATURE WIDTH

4 – 8 meters

SUNLIGHT EXPOSURE
  • Full Sun
  • Part Shade
FROST TOLERANCE

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

AUSTRALIAN NATIVE?
No

3. Practical Uses & Flowering

USES:
  • Feature Tree
  • Shade Tree
  • Council or Civic Landscapes
FLOWER COLOUR
White
FLOWER TYPE
FLOWERING PERIOD
  • Summer

Planting Tips

Plant Spacing

Feature Planting: Space 6 – 8 m apart to showcase form and canopy

Hedging & Screening: Not typically used due to topiary shape

Avenue Planting: Space 6 – 8 m apart for formal symmetry and structure

Ensuring A Strong Start

  • Site Preparation: Choose a location that accommodates the tree’s mature size and shape; ensure the soil is not compacted.
  • Soil Preparation: Amend the soil with compost or aged manure to enhance fertility and drainage.
  • Planting: Ensure the tree is planted at the same depth as its container. Apply mulch around the base to help retain moisture and control weeds, avoiding direct contact with the trunk to prevent rot.

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

  • Watering: Regular watering is crucial during the first few years; once established, the tree is somewhat drought-tolerant but benefits from occasional deep watering.
  • Pruning: Minimal pruning is needed to maintain its cone shape; best pruned after the flowering season.
  • Fertilization: Apply a balanced fertilizer in early spring to promote healthy growth and abundant flowering.

Growing Your Magnolia Exmouth Cones in Various Soil Types

Here is what customers like you frequently ask

FAQ

  • Q: How often does the Magnolia grandiflora 'Exmouth' bloom?
    A: It primarily blooms in the summer, providing a spectacular display of large, fragrant flowers.
  • Q: Can the Magnolia grandiflora 'Exmouth' be used in smaller gardens?
    A: Due to its significant size and formal topiary shape, it is more suitable for larger gardens where its grandeur can be fully appreciated without spatial constraints.

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