Leaves & needles
Thick, sharp, triangular leaves overlap tightly around shoots and persist for years.
IntroducedEvergreenTypical height 15–30 m
Monkey puzzle
Araucaria araucana
An unmistakable evergreen with rigid, spiny leaves covering rope-like branches.
THROUGH THE YEAR
Monkey puzzle through the seasons
Regular tiers of stiff branches; mature crowns can become umbrella-shaped.
Evergreen; large cones occur on mature female trees.
Same architectural outline and heavily spined branches.
Typical open-grown form. This tree keeps foliage in winter, shedding older leaves or needles gradually. Pruned, sheltered and young trees can look different.
LOOK A LITTLE CLOSER
How to identify monkey puzzle
Bark
Grey-brown to purplish bark; older trunks develop rough plates and broad branch scars.
Twigs
Stout shoots are densely armoured with stiff triangular leaves.
Buds
Growing tips are enclosed in sharp leaves; there are no conspicuous exposed winter buds.
Flowers & pollen
No true flowers: cylindrical pollen cones and much larger rounded seed cones usually occur on separate trees.
Fruit, seeds & cones
Large rounded female cones contain sizeable seeds and break apart when ripe.
Images show typical features and are not to scale. Confirm several features using the reference sources below.
CARE WITH PURPOSE
Caring for monkey puzzle
Help it thrive
Needs ample room, sun and good drainage. Keep sharp branches away from paths; protect young trees from waterlogging.
Pruning advice
Prune only when necessary to address damaged branches. Keep the leading shoot and natural whorls.
When can it be pruned?
Spring–summer for necessary light work
JanFebMarAprMayJunJulAugSepOctNovDec
Highlighted months are an indicative window for the work described, not a reason to prune every year. An unshaded month is not an absolute ban.
Timing must suit the tree's health, weather, wildlife and legal protection. Avoid severe frost, drought and vulnerable new leaf growth. Mature trees, major branches and suspected defects need professional assessment.
Tree health: what to watch for
Leaves are very sharp; large cones can be heavy.
Identification & care references
Guide researched November 2026. Identification remains provisional until several features agree. UK native means native in some part of the UK, not necessarily your area.
Before work in England, check tree preservation orders, conservation-area restrictions and wildlife protection. Official tree protection guidance ↗