Thuja occidentalis 'Techny' - sometimes referred to as 'Mission' Arborvitae
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
3 - 5 ft.
Moderate ( 6" - 10" avg per yr )
4 - 8
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.
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.
--Recommended Spacing :
3 - 4 ft apart recommended for privacy screen or windbreak planting
--Deer Resistance Rating : Lowest Resistance [ 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9 - 10 ] Highest Resistance
--Fertilization / Feeding :
For maximum health & hardiness, we highly recommend a good grade granular ( preferably organic ) fertilizer / plant food for use with all of our plant species. We personally use, and recommend the Espoma line of organic plant foods, as they are super effective yet gentle enough to use on even the most delicate of evergreen species where fertilizer burn would normally be a major concern. However, a water soluble type plant food (Miracle Gro, or equivalent ) are also acceptable options. Other granular fertilizers with a 6 - 12 - 12, or 10 - 10 - 10 ratio can also be used - but we suggest using them at 1/2 - 3/4 strength to avoid any chemical burn issues to the root system of the plants. Best to fertilize in early spring, and again in mid fall - avoid feeding standard chemical fertilizers during hot summer months, and directly after transplanting. The Espoma Organic Plant Foods may be used at anytime.