Conifer Trees / evergreens · False cypress
Hinoki Cypress 'Kosteri'
Chamaecyparis obtusa 'Kosteri'
In USDA zones 7b–8a around Raleigh, Durham, and Cary, Hinoki Cypress 'Kosteri' is a evergreen used in Triangle yards when mature size, sun, and drainage fit the bed. Piedmont clay rewards a wide planting hole, a slightly high crown, and steady first-season water. Give it the open sky it wants; west-facing walls in July still cook tender foliage. Fall planting is the usual window here; water through the first summer no matter the calendar.
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Key facts for the Triangle
- Botanical name
- Chamaecyparis obtusa 'Kosteri'
- Common name
- Hinoki Cypress 'Kosteri'
- Plant type
- Conifer Trees / evergreens
- Group
- False cypress
- Hardiness here
- USDA 7b–8a (Raleigh–Durham Triangle)
- Light
- Part sun / part shade
- Water
- Deep, consistent water while establishing
- Soil
- Well-drained
- Leaf habit
- Evergreen
- Best planting window
- Fall (October–November) in the Piedmont; spring after frost as backup
Overview
Chamaecyparis obtusa is a species of cypress native to central Japan in East Asia, and widely cultivated in the temperate northern hemisphere for its high-quality timber and ornamental qualities, with many cultivars commercially available. It once existed outside Asia with a range that stretched to Germany during the Miocene. Hinoki grows primarily on the islands of Honshu, Shikoku, and Kyushu. The main massifs are formed in mountainous regions with a moderately humid climate, at altitudes from 300 to 1,500 meters above sea level.
At a glance
Sun
Water & soil
Foliage & season
Habit & use
Common questions
Is Hinoki Cypress 'Kosteri' a good plant for Raleigh and the Triangle?
Yes—when the site matches its light and drainage needs. Hinoki Cypress 'Kosteri' is used in Raleigh, Durham, and Cary landscapes in USDA zones 7b–8a. Confirm mature width, overhead wires, and how wet the Piedmont clay stays after storms before you plant.
When should I plant Hinoki Cypress 'Kosteri' in North Carolina?
Fall (October–November) is the safest window for Hinoki Cypress 'Kosteri' in the Piedmont: soil is still warm, air is cooler, and roots can grow before summer. Spring after the last frost works if you can water deeply through the first hot season.
Will Hinoki Cypress 'Kosteri' grow in Piedmont clay?
It can, with careful planting: wide hole, crown slightly above grade, and no water sitting on the root flare. Heavy, poorly drained clay is the usual failure mode—not summer heat alone.
Does Hinoki Cypress 'Kosteri' lose its leaves in winter?
No. Hinoki Cypress 'Kosteri' is evergreen and keeps foliage year-round, which is why it is used for winter structure and screening in Triangle yards.
How much sun does Hinoki Cypress 'Kosteri' need?
It performs best in full sun—about 6 or more hours of direct light. Afternoon shade can help in reflected-heat courtyards, but too little sun usually means weaker flowering or open growth.
Reference context includes Wikipedia (“Chamaecyparis obtusa”), licensed under CC BY-SA.