Trees and shrubs

Cedar 'De Groot's Spire'

Thuja occidentalis

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Exposure
Sun to partial shade
Hardiness
Zone 3

Discover the plant

Common nameCedar
FamilyCupressaceae
GenusThuja
Specieswestern
CultivarDe Groot's Spire
TypeConiferous
Botanical nameThuja occidentalis

De Groot's Spire Cedar (Thuja occidentalis ‘De Groot's Spire’). Thuja occidentalis ‘De Groot’s Spire’ is a slender western cedar prized for its narrow habit and highly structured columnar silhouette. This evergreen conifer develops a naturally taller-than-wide shape, ideal for vertical hedges, privacy screens, and linear plantings in confined spaces. Its glossy dark green foliage maintains good density all year round and is very resistant to northern climatic conditions. Narrower than traditional arborvitae, it offers excellent screening power without taking up too much ground space.

To plant ‘De Groot's Spire’ cedar, choose an appropriate exposure: sun to partial shade. The recommended soil is well-drained and tolerant of various soil types. Respect the conifer's natural silhouette and avoid deep pruning into parts lacking foliage. Monitor moisture after planting, including in dry autumn weather. Aeration and drainage are as important as watering frequency. Water the root ball before planting it in the ground and ensure that water can drain after planting. During establishment, check the moisture by hand before watering again.

Allow a width of 1.5 m (5 ft) to plan the placement of this plant in the garden. The indicated height of 6 m (20 ft) helps choose its position relative to neighboring plants. Maintain access to the base for weeding, checking moisture, and removing damaged parts. Combine this variety with plants that have compatible light and water needs. If considering a container, first check that its volume and drainage are suitable for root development. Roots in pots are more exposed to cold than those planted in the ground.

Cèdre ‘De Groot's Spire’ (Thuja occidentalis)

Soil and care

The right care,at the right time.

Minimum temperature

'-40°C

Watering

Regular watering

Soil type

Well-drained, tolerates various soils

Fertilization

Slow-release fertilizer in spring. Fertilize monthly or as directed on the bag. Not recommended – use Bionik rooter or bone meal.

Bloom and dimensions

Its place,in your garden.

Mature height

2 to 3 m (6 to 10 feet)

Width / spread

1 m (3 feet)

Foliage color

Green

Foliage type

Persistent

Growth rate

average

Growth habit

Narrow, dense columnar growth

Bloom period

Not significant

Fruiting

Small brown cones, not very abundant.

Harvest

FALSE

Wildlife and pets

Life,around your plants.

Supporting wildlife

No