Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct
Magnolia grandiflora 'Coolwyn Gloss' - Evergreen Trees Direct

Magnolia grandiflora 'Coolwyn Gloss'

40cm/45L: Approx. 1.4m - 1.8m
70L: Approx. 1.7 - 2 .1m
100L: Approx. 2.5 – 3.0 m tall
200L: Approx. 2.8 - 3.5m

500L: Approx. 4.5 - 5.5m

750L: Approx. 5 - 6m

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
$6,400.00
$6,400.00
Tax included. Shipping calculated at checkout.
A GRADE STOCK, EVERY TIME.

Learn About Your New Magnolia grandiflora 'Coolwyn Gloss' - Southern Magnolia

Magnolia grandiflora 'Coolwyn Gloss' is a stunning evergreen Southern Magnolia known for its glossy, dark green leaves and large, fragrant white flowers. Growing 9–12 meters tall and 6–9 meters wide, it features smooth gray bark and a slow to moderate growth rate.

This versatile tree thrives in well-draining, acidic soils and adapts to a range of conditions. It’s low maintenance, drought-tolerant, and pest-resistant, making it perfect as a striking specimen, grouped planting, or elegant hedge/privacy screen in gardens and landscapes.

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

1. Botanical & Physical Characteristics

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

2. Growth & Environmental Conditions

GROWTH RATE
  • Medium Growth Rate
EXPECTED GROWTH PER YEAR

Approx 20 – 30 cm per year (slow to moderate)

MATURE HEIGHT

6m - 10m Approximately

MATURE WIDTH

6 – 9 meters

SUNLIGHT EXPOSURE
  • Full Sun
FROST TOLERANCE

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

AUSTRALIAN NATIVE?
No

3. Practical Uses & Flowering

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

Planting Tips

Plant Spacing

Feature Planting: Space 6 – 9 m apart for natural form and flower impact

Hedging & Screening: Space 3 – 4 m apart for dense year-round screening

Avenue Planting: Space 5 – 6 m apart for structured planting lines

Ensuring A Strong Start

Selecting the Location: Choose a well-draining site with full to partial sun exposure for planting your Southern Magnolia. Ensure it has sufficient space to accommodate its mature size.

Digging the Hole: Dig a hole that is roughly twice the width of the tree's root ball and of equal depth. This extra space will allow the roots to expand easily.

Positioning the Tree: Gently remove the tree from its container and place it in the center of the hole. Ensure the top of the root ball is level with the surrounding ground.

Backfilling: Fill the hole with the excavated soil, pressing it down firmly to eliminate air pockets. Water the tree thoroughly to help settle the soil.

Mulching: Apply a layer of mulch around the base of the tree to conserve moisture and regulate soil temperature.

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

1. Watering: Once established, the Southern Magnolia is considered low maintenance. However, it requires regular watering, especially during droughts. In the first year, provide weekly watering. Afterward, water every other week unless drought conditions prevail, in which case weekly watering is recommended.

2. Pruning: Pruning is generally needed for shaping the tree or removing dead branches. However, the Southern Magnolia exhibits a natural tendency for self-pruning.

3. Soil Type: This tree is adaptable to various soil types but thrives best in well-draining, acidic soils. You can test your soil's acidity with an at-home soil test kit or seek advice from a local nursery or gardening center.

Growing Your Magnolia grandiflora 'Coolwyn Gloss' in Various Soil Types

How to Grow in Different Soil Types

Magnolia 'Coolwyn Gloss' prefers moist, well-drained soil, but adapts well to various soil conditions:

Sandy Soil: Requires organic matter and mulch to retain moisture.

Clay Soil: Improve drainage with compost and sand to prevent water retention.

Loamy Soil: Ideal for root development, providing balanced nutrients and moisture.

Acidic or Alkaline Soil: Prefers slightly acidic to neutral soil, though it is adaptable to mild alkalinity.

Here is what customers like you frequently ask

FAQ

Q: Is the Southern Magnolia a fast-growing tree?
A: No, the Magnolia grandiflora 'Coolwyn Gloss' is considered a slow to moderately growing tree.

Q: What are the main uses of this magnolia cultivar in landscaping?
A: The Southern Magnolia is typically used for avenue planting, hedging, screening, and as a feature tree, adding elegance and natural beauty to outdoor spaces.

Q: Does it require high maintenance?
A: No, once established, this magnolia is low maintenance. However, it does need regular watering, particularly during its first year.

Q: Is the Southern Magnolia prone to pests and diseases?
A: This tree is generally resistant to pests and diseases, making it a reliable choice for landscaping.

Q: Can I grow other plants near the Southern Magnolia?
A: Yes, you can plant other garden vegetation near the Southern Magnolia, as long as it does not compete for resources and has similar sunlight and water requirements.

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