Acer ‘Crimson Sentry’ Maple - Evergreen Trees Direct

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Acer ‘Crimson Sentry’ Maple

Name: Acer ‘Crimson Sentry’ Maple
Brand: Evergreen Trees Direct
SKU: ACERCRIMSCEN40cm/45L
Price: 250.00 AUD
Availability: OutOfStock

$250.00

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Out of stock

Size: 40cm/45L

40cm/45L

Current Stock Height Guides

40cm/45L: 1.7m – 3m Approx.

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.

About Acer ‘Crimson Sentry’ Maple

Acer 'Crimson Sentry' – Crimson Sentry Maple is a narrow, deciduous tree with a strong vertical habit and deep burgundy foliage that holds colour throughout the growing season. Its compact form (9–10m high × 3–4m wide) makes it ideal for spaces where height is needed without lateral spread.

They look excellent in driveway lines, tight verges, or as vertical features in formal gardens where structure and colour are key. Unlike broader maples, this cultivar offers a refined, columnar silhouette with minimal maintenance and reliable colour retention in full sun.

Well suited to urban settings, narrow beds, and modern designs requiring vertical definition and seasonal contrast.

Key Information to Know

Evergreen / Deciduous

Acer ‘Crimson Sentry’ Maple is an Deciduous (Defoliates throughout colder months) Tree

Mature Height & Width

Mature Height: 3 m – 4 m

Mature Width: 3 m – 4 m

Acer ‘Crimson Sentry’ Maple is expected to grow 40 – 60 cm per year(moderate).

Frost Tolerance

Is Acer ‘Crimson Sentry’ Maple frost tolerant?

Acer ‘Crimson Sentry’ Maple is Frost Hardy – Survives heavy and frequent frost without damage.

Flowering Information

Acer ‘Crimson Sentry’ produces clusters of small yellow-green flowers in early spring before the deep burgundy foliage emerges. Though modest, these early blooms provide pollen for beneficial insects and signal the start of its vigorous seasonal growth.

Native Information

Is Acer ‘Crimson Sentry’ Maple an Australian Native? No

Acer ‘Crimson Sentry’ Maple is Native to A cultivar of the Norway Maple (Acer platanoides), which is native to Europe and western Asia.

Wildlife Value

Its dense, upright canopy offers shelter and nesting sites for small birds, while its spring flowers provide an early food source for native bees, hoverflies and other beneficial insects. This contributes to stronger biodiversity in urban and suburban garden spaces.

Sunlight Information

Acer ‘Crimson Sentry’ Maple will thrive best in:

Full Sun

Preffered Soil

Acer ‘Crimson Sentry’ performs best in well-drained loam or sandy loam soils and prefers slightly acidic to neutral conditions. It can struggle in heavy clay or poorly drained areas unless improved with organic matter to enhance structure and drainage. Keep soil evenly moist during establishment, then transition to deep, occasional watering as the tree matures, particularly during prolonged dry spells.

Botanical Information

Common Name: Crimson Sentry Maple

Genus: Acer

Botanical Species: platanioides

Family: Sapindaceae

Botanical Name: Acer platanoides ‘Crimson Sentry’

Landscape Uses

Avenue Planting
Feature Tree
Street Tree
Council or Civic Landscapes

Acer ‘Crimson Sentry’ Maple works in an:

Woodland Garden – layered, naturalistic design under dappled light.
Formal Garden – structured, symmetrical design with clipped shapes.
Modern Garden – sleek, minimal, and design-led planting.

Planting, Spacing & Care

How to Plant Acer ‘Crimson Sentry’ Maple

Location Selection: Choose a spot with good sunlight to accentuate leaf color.
Soil Enrichment: Enrich the soil with organic compost for better growth.
Hole Preparation: Dig a hole about two times the size of the root ball.
Tree Positioning: Set the 'Crimson Sentry' in the hole, fill with soil, and press down evenly.
Initial Hydration: Water thoroughly after planting to establish roots.

Hedging & Screening: Not suitable for hedging

Feature Tree: Plant 2.5 m – 3.5 m apart to highlight vertical structure and form

Avenue Planting: Space 3 m – 4 m apart for symmetrical rows and narrow streetscape applications

Caring for Acer ‘Crimson Sentry’ Maple

Watering: Maintain even soil moisture, especially during prolonged dry periods.
Pruning: Trim selectively to maintain shape and eliminate undesired growth.
Mulching: Add mulch around the base to maintain soil moisture and suppress weeds.
Monitoring: Regularly inspect for pests and diseases, and act promptly if detected.

Enhancing Soil for Robust Growth and Rich Foliage

Ideal Drainage: 'Crimson Sentry' performs best in well-drained soil.

Well-Draining Soil: This soil type is fantastic, promoting deep red foliage.

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

Sandy Soil: Great for its drainage; boost its nutrient content by incorporating well-rotted compost and a balanced slow-release fertilizer.
Clay Soil: Dense and rich, it can be optimized by adding gypsum and organic compost to improve its structure and root penetration for 'Crimson Sentry'.
Loamy Soil: Perfect for this maple, just enhance with a layer of organic mulch to optimize conditions.
Peaty Soil: Nutrient-rich but may be too wet; improve drainage with coarse gravel or sand to ensure a healthier growing environment for 'Crimson Sentry'.

Acer ‘Crimson Sentry’ Maple is expected to grow 40 – 60 cm per year(moderate).

Medium Growth Rate

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)

Ideal Conditions

Northern NSW (Byron, Coffs, Armidale)
Inland NSW / Tablelands (Orange, Bathurst, Canberra)
Sydney & Central Coast
South Coast NSW (Illawarra to Bega)
Melbourne & Surrounds (Metro, Bayside, Geelong, Bellarine, Mornington)
Western District & Central VIC (Ballarat, Bendigo, Hamilton)
Gippsland (Latrobe Valley, East Gippsland)
Alpine / High Country (Bright, Mansfield)
Adelaide Hills & Barossa

Thrives in

Full Sun

Frost Tolerance

Frost Hardy – Survives heavy and frequent frost without damage.

Drought Tolerance

As a young tree it requires regular watering, but once established Acer ‘Crimson Sentry’ develops moderate drought tolerance. It handles short dry spells well, though deep, occasional watering during extended heat helps maintain leaf colour and canopy strength.

Flowering Information

Does Acer ‘Crimson Sentry’ Maple flower?

Yes - Flowers

Flowering Period:

Spring

Flower Type:

Clustered

Flower Colour:

Red

Frequently Asked Questions

Frequently Asked Questions

How does the 'Crimson Sentry' differ from other maples? Its distinctive deep purple-red foliage and columnar form set it apart.
How can I maximize its vibrant color? Ample sunlight exposure will enhance its unique leaf hue.
Is the 'Crimson Sentry' fit for confined spaces? Its upright, narrow growth makes it ideal for tight urban areas and smaller gardens.