Cupressus glabra ‘Glauca’ (Blue Arizona Cypress)
Cupressus ‘Glauca’ is an evergreen conifer valued for its striking blue-grey foliage and strong, upright form. It is commonly known as Blue Arizona Cypress and is widely used in landscaping for screening, windbreaks, and feature planting.
The plant produces dense, fine-textured foliage in silvery-blue tones that remain consistent throughout the year. Its colour provides strong contrast against green plantings and works well in both formal and natural landscapes.
Key Features
‘Glauca’ is known for its distinctive blue foliage and fast growth, making it an effective choice for privacy screening and large-scale planting.
It is highly drought tolerant once established and performs well in dry, exposed, and coastal conditions.
Its tall, narrow habit allows it to be used where vertical structure is needed without excessive width.
Growth Habit and Size
This variety grows as a tall, upright conifer with a conical to columnar form.
It typically reaches 10 to 15 metres in height, with a spread of approximately 3 to 5 metres. Growth rate is fast under favourable conditions.
Care Requirements
Light
Requires full sun for best colour and growth.
Watering
Requires regular watering during establishment. Once established, it is highly drought tolerant.
Water occasionally during extended dry periods.
Soil
Prefers well-draining soil and performs well in sandy or poorer soils.
Temperature and Climate
Suitable for temperate, inland, and coastal climates. It tolerates heat, wind, and frost.
Maintenance
Low maintenance. Minimal pruning is required, though light shaping can be carried out if needed.
Fertilising is generally not necessary.
Mulching helps retain moisture during establishment.
Common Issues
Poor drainage may lead to root issues.
Can become very large if not managed or spaced appropriately.
Generally pest and disease resistant.
Applications
Cupressus ‘Glauca’ is suitable for:
Screening and privacy planting
Windbreaks
Feature tree planting
Large landscapes
Coastal and exposed sites
Avenue planting
Its height and colour make it a strong structural element.
Specification and Care Chart
| Attribute |
Details |
| Botanical Name |
Cupressus glabra ‘Glauca’ |
| Common Name |
Blue Arizona Cypress |
| Plant Type |
Evergreen conifer |
| Mature Height |
10 m to 15 m |
| Growth Habit |
Upright, conical |
| Growth Rate |
Fast |
| Light Conditions |
Full sun |
| Direct Sunlight |
Required |
| Watering Frequency |
Low once established |
| Soil Type |
Well-draining, sandy soils tolerated |
| Drainage Requirement |
Essential |
| Temperature Range |
Temperate to inland |
| Frost Tolerance |
High |
| Drought Tolerance |
High |
| Maintenance Level |
Low |
| Fertiliser |
Not required |
| Toxicity |
Not commonly regarded as toxic |
FAQ – Cupressus ‘Glauca’
What colour is the foliage?
Silvery-blue to blue-grey year-round.
Does it need full sun?
Yes, full sun is essential for best growth and colour.
Is it drought tolerant?
Yes, highly drought tolerant once established.
Is it suitable for screening?
Yes, it is commonly used for tall privacy screens.
How big does it grow?
Typically reaches 10 to 15 metres in height.
Is it low maintenance?
Yes, it requires minimal care once established.
