Magnolia Grandiflora 'Supergem'

Size: 100L
Sale price$800.00

Magnolia grandiflora 'Supergem' is a compact and elegant Southern Magnolia cultivar, prized for its smaller size and lush, dark green foliage with velvety bronze undersides. Growing 6–8 meters tall and 3–4 meters wide, it fits well in landscapes where space is limited but impact is desired.

This evergreen tree produces large, fragrant creamy-white flowers, 20–25 cm across, from late spring through early summer, sometimes blooming sporadically throughout the season. It features a pyramidal to rounded crown with dense branching, making it ideal as a specimen tree or privacy screen.

'Supergem' thrives in well-drained, acidic soils, tolerates urban pollution, and is moderately drought-tolerant once established. Preferring full sun to partial shade, it requires minimal pruning after flowering to maintain shape.

A perfect choice for adding classic magnolia beauty and resilience to smaller gardens or formal landscapes.

    Please note, as living products, our trees naturally vary in size and appearance throughout the seasons. The photos on our website are provided as a helpful guide, but may not always reflect our current batches. We always aim to deliver stock as pictured, but some variation is to be expected. For up-to-date sizing, please refer to our current height guide. If you’d like to see photos of our current stock, just let us know—we’re happy to send them!

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    About This Tree

    Botanical Profile

    Explore the essential characteristics and growth habits of this plant, curated to assist you in making an inspired and confident choice for your landscape.

    Mature Height & Width

    Mature Height:

    6 – 8 meters

    Mature Width:

    3 – 4 meters

    Expected Growth Pear Year

    Approx 20 – 40 cm per year (moderate)

    • Medium Growth Rate
    Evergreen/ Deciduous

    Evergreen (foliage year round)

    Frost Tolerance

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

    Sunlight Tolerance
    • Full Sun
    • Part Shade
    Form & Shape

    Magnolia Grandiflora 'Supergem' is considered:

    • Dense
    • Upright
    Australian Native?

    No

    Flowering Information

    Flower Colour: White

    Flower Type:

    • Fragrant

    Flowering Period

    • Spring
    Foliage Type / Shape
    • Broad

    As Featured In

    Here Is What Customers Like You Frequently Ask

    FAQ

    Frequently Asked Questions:

    • When is the best time to plant Magnolia 'Supergem'?
      Planting in early spring or fall allows the tree to establish itself during moderate temperatures.
    • How often should I water my Supergem Southern Magnolia?
      Water regularly, especially during the first few years; once established, the tree will be more drought-resistant.
    • Is Magnolia 'Supergem' prone to any pests or diseases?
      While it is generally hardy, it can sometimes face issues with scale insects or fungal diseases. Proper care usually keeps these problems at bay.
    • Can 'Supergem' be grown in a pot?
      Yes, its moderate size makes it suitable for large container planting, provided it has enough room to grow.
    • What makes 'Supergem' different from other Magnolia grandiflora cultivars?
      Its compact growth, abundant flowering, and evergreen nature make it a standout choice for gardens where space is a consideration without sacrificing the dramatic impact of magnolias.

    About

    Planting Guide

    Plant Spacing

    Feature Planting: Space 3 – 5 m apart to showcase full shape

    Hedging & Screening: Space 2.5 – 3 m apart for structured evergreen screens

    Avenue Planting: Space 4 – 5 m apart for formal layout with consistent form

    How to Plant Magnolia Grandiflora 'Supergem'

    How to Plant:

    • Select a location that receives full to partial sun and has well-drained, acidic soil.
    • Dig a hole twice as wide as the root ball and just as deep.
    • Carefully remove the tree from its container and place it in the hole, making sure the top of the root ball is level with the soil surface.
    • Backfill the hole with soil, water thoroughly, and apply a layer of mulch to help retain moisture.

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

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    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.

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