About Thuja Occidentalis (DeGroot's Spire)

Written by hazel morgan
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About Thuja Occidentalis (DeGroot's Spire)
(Siri Stafford/Lifesize/Getty Images)

An evergreen conifer, Degroot's Spire also is referred to as Arborvitae (tree of life) or Eastern white-cedar, as are all members of the Thuja occidentalis species. It is one of about 300 cultivars, or variants, of the wild tree.

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Family

Thuja occidentalis is part of the cypress family Cupressaceae. This species is native to the northeastern United States and Canada. Degroot's Spire is a cultivated version.

Description

Degroot's Spire is a flame-shaped (or columnar) shrub with tightly-packed branches for a compact profile. The tree grows from 6 to 20 feet and spreads 3 to 5 feet. Its foliage is medium green.

Climate

The tree prefers full sun but can handle partial shade; it grows well in Zones 3-7. The wild tree from which it stems grows well in swamps and even on cliffs. This is a tough tree that can tolerate the wet.

Uses

Degroot's Spire is typically used as an accent tree and as a screen. It is slow-growing and can be trimmed back to fit its garden.

Problems

According to the Evergreen Plant Nursery, the main problems this tree suffers are spider mites, Seiridium spp. canker and spider mites.

Fun Fact

DeGroot's Spire was introduced around 1972 by Sheridan Nursery in Ontario, Canada. DeGroot first selected seedlings for this cultivar in 1964.

Fun Fact

DeGroot's Spire was introduced around 1972 by Sheridan Nursery in Ontario, Canada. DeGroot first selected seedlings for this cultivar in 1964.

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