Backhousia myrtifolia (Grey Myrtle)

Backhousia myrtifolia (Grey Myrtle)

Backhousia myrtifolia, commonly known as Grey Myrtle, is an evergreen Australian native shrub or small tree valued for its fine foliage, naturally dense habit, and masses of fragrant white flowers. It is widely used in hedging, screening, and feature planting where a soft, refined appearance is desired.

The plant produces narrow, aromatic leaves in soft green to grey-green tones, creating a delicate textured effect. In summer, it becomes covered in clusters of creamy-white flowers with a sweet fragrance that attract bees and pollinators.

Key Features

Grey Myrtle is known for its elegant foliage and profuse flowering display.

It forms a dense canopy suitable for hedging and privacy screening.

The foliage is lightly aromatic, adding sensory appeal to gardens.

Growth Habit and Size

This species grows as a dense shrub or small tree with an upright habit.

It typically reaches 3 to 8 metres in height, depending on pruning and growing conditions, with a spread of approximately 2 to 4 metres. Growth rate is moderate.

Care Requirements

Light

Performs best in full sun to partial shade. Full sun encourages denser growth and flowering.

Watering

Requires regular watering during establishment. Once established, it prefers moderate watering.

Water during extended dry periods.

Soil

Prefers well-draining soil enriched with organic matter but adapts to a range of soil types.

Temperature and Climate

Suitable for temperate to subtropical climates. Tolerates humidity and light frost once established.

Maintenance

Low maintenance. Prune lightly after flowering to maintain shape and encourage dense growth.

Responds well to hedging and shaping.

Fertilise lightly during the growing season if required.

Common Issues

Poor drainage may affect root health.

Young plants may require protection from severe frost.

Generally pest and disease resistant.

Applications

Backhousia myrtifolia is suitable for:

Hedging and screening
Feature planting
Native gardens
Fragrant gardens
Urban and courtyard landscapes
Wildlife-friendly planting

Its fine foliage gives it a soft, elegant appearance.

Specification and Care Chart

FAQ – Backhousia myrtifolia

Does it flower heavily?
Yes, it produces masses of fragrant white flowers in summer.

Is it suitable for hedging?
Yes, it forms a dense and attractive hedge.

Does it tolerate shade?
It tolerates partial shade but performs best in full sun.

Is it frost tolerant?
Yes, once established it tolerates light frost.

Is the foliage aromatic?
Yes, the leaves are lightly fragrant.

How big does it grow?
Typically reaches 3 to 8 metres depending on pruning.