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Metrosideros thomasii · Myrtaceae

New Zealand Christmas Tree

✅ Pet-friendlyEvergreen, maintaining foliage throughout the year.100 to 200 cm
Full sunModerate watering; allow to dry between waterings.MediumWithstands light frosts down to minus 5 degrees Celsius.

Description & origin

Metrosideros thomasii is a shrub known for its vibrant red flowers. It is ideal for gardens in coastal regions due to its resistance to wind and salinity. It thrives in temperate climates and is an excellent choice for adding color to the garden.

Size

Can reach up to 2 meters in height in domestic cultivation.

Foliage

Evergreen foliage that remains green throughout the year.

Flowering

Blooms in summer with showy red flowers.

Detailed care

Light

Prefers full sun for optimal growth.

Soil

Well-drained and slightly acidic soil is ideal.

Watering

Moderate watering, allowing the soil to dry slightly between waterings.

Temperature

Tolerates slightly negative temperatures but prefers mild climates.

Fertilising

Fertilize in spring with a balanced fertilizer.

Repotting

Transplant in spring when necessary.

Pruning

Can be pruned after flowering to maintain the desired shape.

Propagation

Propagates by semi-hardwood cuttings in summer.

Common problems

Root rot

Can occur in poorly drained soils. Ensure good drainage.

Mealybug infestation

Inspect regularly and treat with neem oil.

Nutrient deficiency

Yellowing leaves may indicate a lack of nutrients. Fertilize adequately.

Uses & curiosities

In the garden

  • Attracting pollinators
  • Windbreak
  • Decorative element

Other uses

Popular in coastal gardens due to its salt resistance.

Did you know…

This plant is often associated with Christmas in New Zealand due to its blooming during that season.