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Plant guide

Monkey puzzle tree.

Araucaria araucana

Pronounced ar-aw-KAIR-ee-uh ar-aw-KAY-nuh

Also known as Chile pine, Chilean pine, Chilean-pine, Monkey Puzzle, Monkey-Puzzle

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monkey-puzzle
Photo by Alex Shepard (CC BY) via iNaturalist

The monkey puzzle is a striking evergreen conifer known for its unique, architectural appearance. It grows quite slowly and makes a bold statement in large landscapes. You will love its prehistoric look and sharp, spiraling leaves.

Another photo of Monkey puzzle tree
Photo by Nelson Atencio (CC BY) via iNaturalist

At a glance

Care level
Moderate
Plant type
Coniferous evergreen tree
Light
Full sun to partial shade
Indoor light
Direct sun
Water
Every 7 to 14 days
Mature size
50 to 80 feet
Growth rate
Slow
Hardiness
USDA 7 to 10
Bloom time
Rarely flowers in cultivation.

Care

Plant this tree in a spot with plenty of space to accommodate its wide spread. Keep the soil consistently moist but well drained to prevent root issues. Watch for yellowing needles, which often signal that the soil is too dry or poorly drained.

Watering
Water deeply during dry spells to keep the root zone hydrated.
Feeding
Apply a balanced, slow release fertilizer in early spring.
Pruning
Only prune to remove dead or damaged branches since it maintains a natural shape.
Repotting
Repot only when the tree is young and clearly outgrowing its container.
Soil
Deep, fertile, well drained soil
Soil pH
Slightly acidic to neutral
Temperature
-15 to 30°C
Humidity
40 to 70%
Drought tolerance
Moderate
Lifespan
Perennial, can live for over 1,000 years.
Deer and rabbits
High

Signs it needs repotting

  • Roots growing out of the drainage holes.
  • Water running straight through the pot without soaking in.
  • The tree appears stunted despite good care.

Safety

People
The plant is not toxic, but the sharp, rigid leaves can cause significant physical injury.
Children
Keep children away from the base of the tree as the fallen leaves are extremely sharp and dangerous.
Contact allergens
The stiff, pointed leaves can cause skin punctures and irritation upon contact.
Airborne allergens
The pollen may cause mild respiratory irritation in sensitive individuals.
Edibility
The large seeds are edible when cooked but should not be consumed raw.

How to identify it

  • Sharp, triangular, dark green leaves
  • Thick, snake like branches
  • Rough, greyish brown bark
  • Symmetrical, pyramidal growth habit
  • Large, woody, spherical cones
Height
10 to 25m
Spread
3 to 8m
Leaves
dark green, evergreen
Flowers
yellow, brown, 5 to 15cm
Fruit
brown, Autumn

Problems to watch for

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    Growing it

    Propagation
    seed, cuttings
    When to plant
    spring, autumn
    Overwintering
    Young trees may need protection from severe frost with burlap wraps. Ensure the soil remains well drained to prevent root damage during wet winters.
    In containers
    It grows well in large containers for many years, but ensure the pot is heavy enough to prevent tipping.

    Seed

    1. 1. Harvest fresh seeds in autumn.
    2. 2. Sow immediately in well drained potting mix.
    3. 3. Keep the pot in a cool, bright location.
    4. 4. Germination can take several months.

    Plant low growing woodland perennials beneath the tree to utilize the space without competing for deep root resources.

    Grows well with

    • Hosta · These shade tolerant plants thrive under the canopy of the tree.
    • Ferns · Ferns appreciate the cool, moist environment created by the tree's shade.

    Similar species

    Science

    Family
    Araucariaceae
    Genus
    Araucaria
    Order
    Pinales
    Class
    Pinopsida
    Native range
    Central and southern Chile and western Argentina.
    Conservation
    This species is listed as endangered in its native range due to habitat loss and overharvesting.

    It grows in volcanic soils in the Andes mountains where it survives cold winters and heavy snow.

    Value to wildlife
    provides seeds for birds
    Pollinators
    beetles
    Uses
    ornamental specimen, edible seeds

    Through the year

    JFMAMJJASOND
    Flowering
    Fruiting
    Foliage

    Ecological indicators

    Salinity
    2/9
    Soil reaction
    5/9
    Light
    7/9
    Temperature
    4/9
    Moisture
    5/9
    Nutrients
    4/9

    Taxonomy resolved against GBIF.

    Questions people ask

    How fast does it grow?
    It is a very slow growing tree, often adding only a few inches per year.
    Can I grow it in a pot?
    It can be kept in a large container for many years, but it will eventually outgrow it.

    Where the name comes from

    The scientific name refers to the Araucano people of Chile, who rely on the tree for food.

    Good to know

    • It is commonly called the monkey puzzle tree because it is said to puzzle a monkey to climb it.
    • The tree can live for over 1,000 years in the wild.
    • It is the national tree of Chile.
    • The leaves are arranged in a unique spiral pattern around the branches.

    Also in

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    This guide was generated with AI on and checked against GBIF taxonomy. It is general information, not horticultural or veterinary advice. Read about how we build these guides.