pyramidal shaped arborvitae with excellent green color year round -
virtually no color change / bronzing at all. Techny has also shown very good cold hardiness - good choice for cooler climates. Delicate, fernlike foliage
makes Techny a wonderful choice for screens & hedge applications.
Often preferred over Emerald Green Arborvitae for its better color
retention, and foliage density when mature. Foliage density starts out much more "open" than Emerald Green, but thickens tremendously with age, providing good screening. Has been an extremely
popular selection in northern gardens, and is slowly being used in many
other areas as well. Originally discovered in Mission Gardens, Techny ,
Plant Facts & Specifications
Mature Height: 10-15 ft
Mature Width: 3-5 ft.
Growth rate: Moderate ( 6"-10" avg per yr )
Hardiness Zones: 4-8 ( if unsure of your zone, please use zone finder below )
Sun Exposure: Full sun to partial shade - planting in partial to mostly shade will result in lower foliage density. For best density needs to be planted in full / mostly sunny locations.
Soil Preference: Average to slightly sandy, acidic - well drained
Foliage Color & Texture: Good deep green - older foliage is very dark green, with newer growth being a brighter color. Foliage structure is typical of most Thuja occidentalis varieties.
Flower, Cone, Or Berry Facts: Small cones ( approx 1/4" in length ) are produced in large numbers on this variety. Many times cones are even seen on fairly young specimens, and cone production only increases with age. Cones begin as a very pale green color, quickly turning brown & ripening in early fall. Cones contain wingless seeds.
Diseases / Insects: Bagworms and spider mites are the most common problems seen with this variety. But this variety has shown itself to be very resistant to these common arborvitae pests. We recommend a once / twice a year inspection of specimens just to prevent any problems from occurring.
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