Cedrus atlantica 'Glauca' Horstmann

Horstmann Blue Atlantic Cedar

An unusual, irregularly upright blue Atlas cedar selected for its twisting, contorted branching and intense silvery-blue needles. ‘Horstmann’ develops a sculptural, asymmetrical form that becomes more dramatic with age, offering strong architectural interest year-round. Typically slower growing than standard ‘Glauca’, it excels as a statement specimen.


Plant Characteristics


Type: Evergreen conifer



Form: Upright, irregular, contorted



Mature Width: 15–25 ft



Mature Height: 25–35 ft



Foliage Color: Silvery blue



Texture: Coarse, architectural




Growing Conditions


USDA Hardiness Zones: 6a–9b



Light: Full sun



Soil: Average, well-drained soils; intolerant of wet sites



Water: Moderate; drought tolerant once established



Maintenance: Low; minimal pruning—allow natural form




Landscape Uses
Specimen planting, focal points, modern and architectural landscapes, large rock gardens, and estates where a one-of-a-kind form is desired.


Care Tips


Site carefully to showcase irregular branching



Avoid heavy pruning, which detracts from natural character



Provide space for mature width and form

Plant type

Conifer, Evergreen Tree

Height

25-35'

Width

15-25'

Hardiness zones

6–9

Sunlight

Full Sun, Partial Shade

Growth rate

Moderate

Leaf color

Azure

Soil

Loamy

Landscape use

Accent Plant, Specimen

Shape

Narrow Upright

Bark

Smooth

Fruit

Yes

Deer resistant

Yes

Drought tolerant

No