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Koster's Falsecypress

Chamaecyparis obtusa 'Kosteri'

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Koster's Falsecypress (Chamaecyparis obtusa 'Kosteri') at Chalet Nursery

Koster's Falsecypress

Koster's Falsecypress

(Photo courtesy of NetPS Plant Finder)

Koster's Falsecypress (Chamaecyparis obtusa 'Kosteri') at Chalet Nursery

Koster's Falsecypress foliage

Koster's Falsecypress foliage

(Photo courtesy of NetPS Plant Finder)

Height:  3 feet

Spread:  3 feet

Sunlight:  full sun  partial shade 

Hardiness Zone:  5


A preferred dwarf evergreen shrub for both bonsai and rock gardens, featuring dense sprays of twisted and mossy green foliage on a mounded shape; very slow growing, remains compact without pruning; use as detail in the home landscape

Ornamental Features

Koster's Falsecypress has light green foliage. The scale-like leaves turn coppery-bronze in fall. Neither the flowers nor the fruit are ornamentally significant.

Landscape Attributes

Koster's Falsecypress is a dense multi-stemmed evergreen shrub with a more or less rounded form. It lends an extremely fine and delicate texture to the landscape composition which should be used to full effect.

This is a relatively low maintenance shrub. 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.

Koster's Falsecypress is recommended for the following landscape applications;

  • Accent
  • Rock/Alpine Gardens
  • General Garden Use

Planting & Growing

Koster's Falsecypress will grow to be about 3 feet tall at maturity, with a spread of 3 feet. It tends to fill out right to the ground and therefore doesn't necessarily require facer plants in front. It grows at a slow rate, and under ideal conditions can be expected to live for 50 years or more.

This shrub 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 or pH. It is highly tolerant of urban pollution and will even thrive in inner city environments, and will benefit from being planted in a relatively sheltered location. Consider applying a thick mulch around the root zone in winter to protect it in exposed locations or colder microclimates. This is a selected variety of a species not originally from North America.

Hardiness Zone Plant Height Minimum Sunlight
Accent  Rock  Garden 
Texture  Plant Form  Winter Value 
Ornamental Features