Magnolia grandiflora 'Alta' - Evergreen Trees Direct

Magnolia grandiflora 'Alta'

$280.00

Tax included. Shipping calculated at checkout.

Size: 40cm/45L

40cm/45L 100L 300L

Current Stock Height Guides

40cm/45L: 1.4m – 1.8m Approx.
100L: 2.4m – 2.8m Approx.
300L: Enquire within for height guide information.

Height guide disclaimer: Height ranges are approximate only.

As living products, plant heights naturally vary between individual plants, batches, and seasons. No guarantee is given that supplied plants will fall within the stated range.

If minimum heights are required, you must confirm current batch heights with Evergreen Trees Direct prior to purchase.

Variation in height is normal and is not grounds for return, refund, replacement, or compensation.

All stock is grown, maintained and graded in strict accordance with AS 4373-2007, Australian Standard for Nursery Stock.

About Magnolia grandiflora 'Alta'

Magnolia grandiflora 'Alta', known as Alta Southern Magnolia, is a majestic evergreen tree valued for its glossy dark green foliage and large, fragrant white flowers. Growing 10–15 meters tall and 6–9 meters wide, it has an upright, pyramidal form with a well-structured crown.

This cultivar thrives in full sun to partial shade, adapts to various soils, and tolerates urban pollution. It requires moderate maintenance and regular watering during establishment but becomes drought-tolerant over time. Ideal as a specimen or shade tree, Alta Southern Magnolia adds timeless elegance and captivating fragrance to gardens, parks, and urban landscapes.

Distinguishing Features

Magnolia grandiflora 'Alta' is a great option for you if you:

Want Low Maintenance
Want A Formal Hedge
Want A More Informal Hedge
Want Fast Growing
Want Your Tree To Grow Tall
Want To Prune to Desired Height
Want Shade
Want To Avenue Plant
Want To Add Impact With A Feature Tree
Want A Flowering Tree
Want to Attract Birds And Bees
Want Natural Privacy
Want Something Easy to Manage
Want Something That Stays Neat
Want A Fragrant Garden
Need Frost Tolerance

Mature Height & Width

Mature Height: 6m - 10m Approximately

Mature Width: 6 – 9 meters

Magnolia grandiflora 'Alta' is expected to grow Approx 30 – 50 cm per year (moderate).

Root Ball Dimensions (Height & Width)

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)

Trade Customers

We supply advanced trees to landscapers, developers, architects, and councils Australia-wide. Trade clients receive fast quotes, expert advice, and access to premium stock with reliable freight.

Register or learn more ›

Shipping Cost

Shipping is calculated at checkout based on the pallet space your order occupies in the truck and your delivery location.

There is no charge to calculate your freight.

VOLUME DISCOUNTS

10% off orders over $1,000
15% off orders over $2,000
20% off orders over $7,500

Discounts Apply Automatically at Checkout

About Your New Magnolia grandiflora 'Alta'

Magnolia grandiflora 'Alta', known as Alta Southern Magnolia, is a majestic evergreen tree valued for its glossy dark green foliage and large, fragrant white flowers. Growing 10–15 meters tall and 6–9 meters wide, it has an upright, pyramidal form with a well-structured crown.

This cultivar thrives in full sun to partial shade, adapts to various soils, and tolerates urban pollution. It requires moderate maintenance and regular watering during establishment but becomes drought-tolerant over time. Ideal as a specimen or shade tree, Alta Southern Magnolia adds timeless elegance and captivating fragrance to gardens, parks, and urban landscapes.

Your cart
Variant	Quantity	Price	Variant total
40cm/45LMAGGRAALT40CM/45L $280.00/ea Remove Quantity Remove $0.00	Quantity Remove	$280.00/ea	$0.00
100LMAGGRAALT100L $650.00/ea Remove Quantity Remove $0.00	Quantity Remove	$650.00/ea	$0.00
300LMAGGRAALT300L $1,500.00/ea Remove Quantity Remove $0.00	Quantity Remove	$1,500.00/ea	$0.00

0

Total items

Product subtotal

$0.00

Tax included. Shipping and discounts calculated at checkout.

View cart

Enriched Planting Mix (AO Certified)

$21.95

Features and Benefits

Organically certified product
Improves aeration for roots
A rich blend of Pure Magic Compost, composted animal manure, Gypsum, composted coarse bark and wetting agent
Excellent to mix with heavy clay soils, an organic mixture with added gypsum which is perfect for exotic plants
Revitalises tired soils, adds nutrient and organic matter, no chemical additives, weed free
Assists in retaining moisture in the soil longer after rain or watering

Directions For Use

Water plant well at least several hours prior to planting.
Dig a hole at least twice the width of the pot and 7cm deeper than the pot.
Mix Grow Better Enriched Planting Mix with the soil that has been dug out of the hole, adding about 1/3 planting mix.
Spread a 7cm layer of improved soil in the hole and remove plant from the pot. Tease roots gently if the root ball is very firm and place plant in the planting hole. Check that pot soil is level with the surrounding soil surface level, not higher or lower.
Fill in the hole with improved soil mixture, firm down soil and water well adding Grow Better Plant Starter to final watering.

View full details

Type:

Enriched Planting Mix (AO Certified)

$21.95

Type: Hedging and Screening Trees

Rhaphiolepis indica 'Snow Maiden'

From $130.00

Type: Hedging and Screening Trees

Pittosporum tenuifolium 'Silver Sheen'

From $145.00

Melaleuca Nesophilla - Evergreen Trees Direct

Type: Australian Native

Melaleuca Nesophila

$265.00

Type: Structural Foliage

Buxus Japonica - Japanese Boxwood Balls

From $265.00

Liguleria Reniformis - Evergreen Trees Direct

Type: Structural Foliage

Ligularia Reniformis

$45.00

Type: Hedging and Screening Trees

Magnolia grandiflora 'Little Gem'

From $190.00

Uses in my Garden

Feature Tree
Screening or Privacy
Avenue Planting
Shade Tree

Magnolia grandiflora 'Alta' works in an:

Formal Garden – structured, symmetrical design with clipped shapes.
Modern Garden – sleek, minimal, and design-led planting.
Cottage Garden – romantic mix of flowers, colour, and texture.
Low-maintenance Garden – resilient choices for easy care and year-round appeal.

Is Magnolia grandiflora 'Alta' Evergreen or Deciduous?

Magnolia grandiflora 'Alta' is an Evergreen (foliage year round) Tree

Mature Height & Width

Mature Height: 6m - 10m Approximately

Mature Width: 6 – 9 meters

Magnolia grandiflora 'Alta' is expected to grow Approx 30 – 50 cm per year (moderate).

Growth Rate of Magnolia grandiflora 'Alta'

Magnolia grandiflora 'Alta' is expected to grow Approx 30 – 50 cm per year (moderate).

They are considered to have a:

Medium Growth Rate

Frost Tolerance & Ideal Climate to plant Magnolia grandiflora 'Alta'

Is Magnolia grandiflora 'Alta' frost tolerant?

Magnolia grandiflora 'Alta' is Frost Tolerant – Can handle light to moderate frost once established.

Does Magnolia grandiflora 'Alta' Flower?

Magnolia grandiflora ‘Alta’ produces large, creamy-white, lemon-scented flowers from late spring through summer, with intermittent blooms into early autumn. The upright, cup-shaped flowers stand out beautifully against the dense, glossy green foliage, creating a refined and long-lasting seasonal display.

Does Magnolia grandiflora 'Alta' flower?

Yes - Flowers

Flowering Period:

Summer
Autumn

Flower Type:

Bell-shaped
Clustered
Pollinator-attracting

Flower Colour:

White

Is Magnolia grandiflora 'Alta' an Australian Native Tree?

No

Magnolia grandiflora 'Alta' is Native to A cultivated form of Magnolia grandiflora, which is native to the southeastern United States, where it grows naturally in moist forests and coastal plains.

What is the Wildlife Value of Magnolia grandiflora 'Alta' ?

Its large, nectar-rich flowers attract bees, beetles and pollinating insects, while the dense evergreen canopy provides year-round shelter and nesting habitat for small birds. The seeds that develop within the fruiting cones are also eaten by birds and contribute to garden biodiversity.

How much Sunlight does Magnolia grandiflora 'Alta' need?

Magnolia grandiflora 'Alta' will thrive best in:

Full Sun

Preferred Soil?

Magnolia grandiflora ‘Alta’ performs best in well-drained, slightly acidic loam or sandy loam soils. It may struggle in heavy clay, alkaline or poorly drained ground unless improved with organic matter to enhance soil structure and drainage. Keep soil evenly moist during establishment, then transition to deep, occasional watering as the tree matures to support strong evergreen growth, narrow form and reliable flowering.

Is Magnolia grandiflora 'Alta' Drought Tolerant?

Is Magnolia grandiflora 'Alta' Drought tolerant?

As a young tree it requires regular watering, but once established ‘Alta’ develops good drought tolerance. It performs reliably in warm, dry and urban environments and maintains its narrow, columnar form with deep, occasional watering during extended dry periods.

youtube

How To Plant Your Magnolia grandiflora 'Alta'

How to plant Magnolia grandiflora 'Alta'

Choose a location with well-drained soil and full sun to partial shade.
Dig a hole twice as wide and as deep as the root ball.
Amend the soil with compost or other organic matter as needed.
Place the tree in the hole and backfill with soil, pressing firmly to eliminate air pockets.
Water thoroughly and mulch around the base to retain moisture and suppress weeds.

Recommended Planting Spacing For Your Magnolia grandiflora 'Alta'

Feature Planting: Space 6 – 9 m apart for full form and canopy development

Hedging & Screening: Space 3 – 4 m apart for tall, formal evergreen screening

Avenue Planting: Space 5 – 6 m apart for structured, upright silhouette

Magnolia grandiflora 'Alta' is expected to grow Approx 30 – 50 cm per year (moderate).

Medium Growth Rate

Long Term Care For Your Magnolia grandiflora 'Alta'

Caring for Your Tree:

Watering: Provide consistent moisture, especially during the first few years. Deep watering is essential for the tree's overall health.
Pruning: Minimal pruning is needed, primarily to remove dead or diseased branches. Prune lightly in late winter or early spring.
Fertilization: Apply a balanced, slow-release fertilizer in spring to promote healthy growth and vibrant flowering.

Frequently Asked Questions

Frequently asked questions

Q: When does Magnolia grandiflora 'Alta' bloom? A: The tree blooms in late spring to summer, producing large, fragrant white flowers.

Q: Is Magnolia grandiflora 'Alta' drought tolerant? A: Yes, the tree is tolerant of drought once established.

Q: What is the mature size of Magnolia grandiflora 'Alta'? A: The tree can reach a height of 12-18 meters and a width of 4-6 meters.

Q: Can Magnolia grandiflora 'Alta' be used as a screen or shade tree? A: Yes, the tree is suitable for use as a screen or shade tree, and its evergreen foliage provides year-round interest.