Threadleaf False Cypress
Chamaecyparis pisifera 'Filifera'
Threadleaf false cypress is an evergreen conifer with long, drooping, whip-like thread foliage that gives a soft, mounding, weeping texture. Golden forms are especially popular as garden accents.
- Light
- Full sun to part shade
- Water
- Moderate; keep evenly moist
- Difficulty
- Easy
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Overview
Threadleaf false cypress (Chamaecyparis pisifera 'Filifera' and related thread cultivars) is a distinctive evergreen conifer grown for its slender, drooping, string-like branchlets that drape in a graceful, mop-like mound.
Derived from the Japanese Sawara cypress, these cultivars come in green and golden ('Filifera Aurea') forms and range from compact dwarf mounds to larger specimen shrubs, adding fine, weeping texture to the landscape.
Easy and adaptable, threadleaf false cypress provides year-round structure and color, working well as a focal point, in mixed conifer beds or in containers.
How to identify it
- Foliage: long, thread-like, drooping branchlets with tiny scale leaves pressed along whip-like stems; green or golden-yellow
- Habit: mounding to broadly conical, with a soft, weeping, mop-head appearance
- Size: dwarf cultivars stay 2 to 5 ft; larger forms can reach 6 to 10 ft or more over time
- Cones: small, round, pea-like cones (the species name pisifera means pea-bearing)
- Texture: fine and shaggy compared with typical conifers
Care & growing
Grows in full sun to part shade; golden forms hold color best in good light.
- Water: keep evenly moist, especially when young; does not like to dry out completely
- Soil: moist, well-drained, slightly acidic
- Temperature: cold hardy, USDA zones 4 to 8
- Feeding: light feeding in spring if needed
- Pruning: trim lightly to shape; avoid cutting into old bare wood, which will not regrow
- Note: golden forms can scorch in intense afternoon sun in hot climates
- Propagation: semi-hardwood cuttings; cultivars are propagated vegetatively
Habitat & origin
The parent species, Sawara cypress, is native to Japan, where it grows in cool, moist mountain forests on the islands of Honshu and Kyushu.
The thread-leaved cultivars are garden selections grown across cool-temperate regions worldwide as ornamental conifers in borders, rock gardens, foundation plantings and containers.
Frequently asked questions
Why does it look like drooping threads?
The 'Filifera' thread cultivars have long, slender, whip-like branchlets that hang down, giving the plant its characteristic soft, weeping, mop-like texture.
How big does it get?
It depends on the cultivar. Dwarf thread forms stay a few feet, while larger selections can reach 6 to 10 ft or more slowly over many years.
Why is the golden form turning brown or scorched?
Golden threadleaf false cypress can scorch in intense afternoon sun and dry soil. Provide some afternoon shade in hot climates and keep it watered.
Can I prune it hard?
Only lightly. Like most conifers, it will not resprout from old leafless wood, so shape it while young and trim within green growth.
Threadleaf False Cypress guides
In-depth guides for identifying, growing, and caring for Threadleaf False Cypress.
