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Thuya occidentalis · Cupressaceae

Northern White Cedar

⚠️ Not safe for petsEvergreen, maintaining foliage throughout the year.100 to 300 cm
Full sunModerate watering; avoid waterlogging.EasyTolerant to prolonged negative temperatures.

Description & origin

The Northern White Cedar is a popular evergreen shrub in Portuguese gardens due to its dense green foliage. It is often used as a hedge or ornamental plant. It thrives in full sun and is cold-resistant.

Size

Can reach up to 3 meters in domestic cultivation.

Foliage

Evergreen foliage that maintains its green color year-round.

Flowering

This species does not produce flowers in domestic cultivation.

Detailed care

Light

Prefers full sun for healthy growth.

Soil

Well-drained and slightly acidic soil.

Watering

Moderate watering, avoiding waterlogging.

Temperature

Tolerates cold well, ideal for temperate climates.

Fertilising

Fertilize in spring with a balanced fertilizer.

Repotting

Transplant in spring or autumn.

Pruning

Can be pruned to maintain the desired shape.

Propagation

Propagates by semi-hardwood cuttings in summer.

Common problems

Root rot

Caused by waterlogged soil, leading to root death.

Red spider mite

Pest that can cause leaf discoloration.

Cedar canker

Fungal disease causing lesions on branches.

Uses & curiosities

In the garden

  • Hedge
  • Ornamental plant
  • Formal gardens

Other uses

Ideal for creating visual barriers and windbreaks.

Did you know…

The Northern White Cedar is often associated with formal gardens due to its ability to be shaped into various forms.