Thuja Orientalis 'Filiformis' 
Overall Description
Threadleaf
Arborvitae has medium green, lacy, evergreen foliage which bronzes just
slightly in winter weather. It has an oval, upright growth habit with
foliage that grows in whiplike strands. With maturity, takes on a very
mounding, pendulous appearance. Overall plant density is greatly enhanced through a couple regular trimmings while the plant is young ( first 2-3 yrs of age ) Most commonly used as a hedge spaced 4
feet apart - but is also a real attention getter when planted in small
groups, or as single specimen plantings. Very unusual, and attractive
plant. If you are a big fan of the pendulous "weeping" look, then this
is one arborvitae that you should definitely take a closer look at.
Plant Facts & Specifications
Mature Height: 10-12 ft
Mature Width: 5-7 ft.
Growth rate: Moderate ( 6"-10" avg per yr )
Hardiness Zones: 4-9 ( if unsure of your zone, please use zone finder below )
Sun Exposure: Full sun to partial shade
Soil Preference: Average to slightly sandy, fertile - well drained
Foliage Color & Texture: Good medium green color - best color during the growing season. Foliage grows in rather sturdy, thick, threadlike strands. Overall plant density is greatly enhanced through a few regular trimmings when the plant is young.
Flower, Cone, Or Berry Facts: None to speak of.
Diseases / Insects: One of the few Thuja varieties that truly appears to have very little to worry about in the way of pests & diseases. Can never rule out an occasional bagworm or two though - especially on older, mature specimens with greater foliage density.
Fertilization / Feeding: Either
water soluble ( Miracle Gro, or equivalent ), or granular ( Holly Tone
is excellent ). Other granular types with 6-12-12, or 10-10-10 ratio is
acceptable. Best to fertilize in early spring, and again in mid fall -
avoid feeding during hot summer months, and directly after
transplanting.
