tree

Alum Lawson Falsecypress

Chamaecyparis lawsoniana 'Alumii'

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Alum Lawson Falsecypress (Chamaecyparis lawsoniana 'Alumii') at Weston Nurseries

Alum Lawson Falsecypress

Alum Lawson Falsecypress

(Photo courtesy of NetPS Plant Finder)

Height:  40 feet

Spread:  25 feet

Sunlight:  full sun  partial shade 

Hardiness Zone:  5a

Other Names:  Oregon Cedar, Port Orford Cedar

Description:

Slightly smaller than the species, this narrowly pyramidal evergreen features attractive, dark blue-green foliage, excellent as a large articulation element in the landscape

Ornamental Features

Alum Lawson Falsecypress is primarily valued in the landscape for its distinctively pyramidal habit of growth. It has bluish-green evergreen foliage. The scale-like sprays of foliage remain bluish-green throughout the winter. The shaggy antique red bark adds an interesting dimension to the landscape.

Landscape Attributes

Alum Lawson Falsecypress is an evergreen tree with a strong central leader and a distinctive and refined pyramidal form. Its relatively fine texture sets it apart from other landscape plants with less refined foliage.

This is a relatively low maintenance tree. When pruning is necessary, it is recommended to only trim back the new growth of the current season, other than to remove any dieback. It has no significant negative characteristics.

Alum Lawson Falsecypress is recommended for the following landscape applications;

  • Accent
  • Vertical Accent

Planting & Growing

Alum Lawson Falsecypress will grow to be about 40 feet tall at maturity, with a spread of 25 feet. It has a low canopy with a typical clearance of 3 feet from the ground, and should not be planted underneath power lines. It grows at a medium rate, and under ideal conditions can be expected to live for 70 years or more.

This tree does best in full sun to partial shade. It prefers to grow in average to moist conditions, and shouldn't be allowed to dry out. It is not particular as to soil type, but has a definite preference for acidic soils. It is somewhat tolerant of urban pollution. Consider applying a thick mulch around the root zone in winter to protect it in exposed locations or colder microclimates. This is a selection of a native North American species.

 
 
Hardiness Zone Plant Height Minimum Sunlight Soil pH Preference
Characteristics
Accent  Articulation 
Applications
Plant Form  Bark  Winter Value 
Ornamental Features