Filiformis Threadleaf Arborvitae
Thuja occidentalis 'Filiformis' — a rare eastern arborvitae with uniquely graceful, pendulous thread-like foliage. Slow-growing to 15-25'. Perfect for collectors seeking distinctive texture and form.
Thuja occidentalis 'Filiformis'
Threadleaf Eastern Arborvitae
Specifications
- Mature Height × Width:
- 15–25' tall
- Hardiness Zone:
- USDA Zones 3–7
- Light Requirements:
- Full sun to part shade
- Growth Rate:
- Slow
- Foliage:
- Pendulous, whipcord-like threads, dark green
Pricing
Rooted Cutting (bare-root, 2–4"): $18–25
1-Gallon Container (8–12"): $35–45
Shopify Buy Button: [Buy now button will appear here with inventory and shipping options]
About Filiformis
Thuja occidentalis 'Filiformis' is a truly distinctive cultivar prized by collectors and ornamental plant enthusiasts. The whipcord-like, pendulous foliage creates an ethereal texture completely unlike standard arborvitae varieties. Growth is slow and deliberate, rewarding patient cultivators with exceptional character.
This cultivar excels as a specimen plant, in Japanese-inspired gardens, or as a bonsai subject. Its graceful branching pattern suggests maturity even on young plants, making it ideal for those seeking year-round visual interest in temperate climates.
Frequently Asked Questions
How large does Filiformis arborvitae grow?
Thuja occidentalis 'Filiformis' is a slow-growing cultivar that reaches 15–25 feet tall at maturity. It maintains a graceful, upright form with naturally pendulous branches.
What hardiness zone is Filiformis suited for?
Filiformis is hardy in USDA Hardiness Zones 3–7, making it well-suited for cold climates. We propagate it in southern Michigan (Zone 5b/6a) where it thrives through harsh winters.
What are the light and soil requirements?
Filiformis performs best in full sun to part shade with well-draining soil. It is tolerant of average garden conditions and established plants are moderately drought-tolerant once rooted.
Is Filiformis suitable for bonsai cultivation?
Yes, Filiformis is an excellent choice for bonsai work and pre-bonsai training. Its naturally graceful form and threadleaf texture develop interesting character with light cultivation and wiring. Rooted cuttings are ideal for starting bonsai projects.