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Thuja plicata 'Hillieri'
(Photo courtesy of NetPS Plant Finder)
Height: 10 feet
Spread: 10 feet
Hardiness Zone: 6a
Other Names: Giant Arborvitae, Western Red Cedar
A neat and uniformly rounded evergreen garden shrub with attractive bluish-green foliage which turns bronze in fall, doesn't require pruning to maintain its form; a fine choice for the home garden for its shape, does best in more humid environments
Hillier Arborvitae has attractive bluish-green foliage. The scale-like leaves are highly ornamental and turn coppery-bronze in fall. Neither the flowers nor the fruit are ornamentally significant.
Hillier Arborvitae is a dense multi-stemmed evergreen shrub with a more or less rounded form. Its relatively fine texture sets it apart from other landscape plants with less refined foliage.
This is a relatively low maintenance shrub. When pruning is necessary, it is recommended to only trim back the new growth of the current season, other than to remove any dieback. It has no significant negative characteristics.
Hillier Arborvitae is recommended for the following landscape applications;
Planting & Growing
Hillier Arborvitae will grow to be about 10 feet tall at maturity, with a spread of 10 feet. It tends to fill out right to the ground and therefore doesn't necessarily require facer plants in front, and is suitable for planting under power lines. It grows at a slow rate, and under ideal conditions can be expected to live for 50 years or more.
This shrub does best in full sun to partial shade. It prefers to grow in average to moist conditions, and shouldn't be allowed to dry out. It is not particular as to soil type or pH. It is somewhat tolerant of urban pollution, and will benefit from being planted in a relatively sheltered location. Consider applying a thick mulch around the root zone in winter to protect it in exposed locations or colder microclimates. This is a selection of a native North American species.
This plant is not reliably hardy in our region, and certain restrictions may apply; contact the store for more information.