Oak

Featured in: Year 1: Plants

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Oak icon

Oak

Tree
Oak tree
Oak tree

A long-lived British tree that bears no acorns until around 40 years old, can host hundreds of species and turns golden-brown in autumn.

A large, strong tree known for its distinctive leaves and acorns.

Oak leaves
Oak leaves
Acorns
Acorns

How to identify:

Look for its wavy-edged (lobed) leaves, its rough, cracked bark, and its small, hard fruit called acorns.

💡 Fun Facts

  • An oak tree doesn't start producing its first acorns until it is about 40 years old.
  • A single oak tree can be a habitat for over 500 different species of insect, bird, and mammal.
  • In autumn, its leaves turn a golden-brown before falling to the ground.

📅 Through the Year

  • Leaf-out:April
  • Flowering:April to May
  • Fruiting:September to October
  • Leaf fall:October to November
Name Story

Quercus robur

means “the strong oak”

What does its name mean?
  • Quercus — oakLatin quercus ‘oak’
  • robur — strength — and hard oak-woodLatin robur, meaning both ‘strength’ and ‘oak timber’

The word robur means ‘strength’ and ‘oak-wood’ at the very same time — as if the Romans couldn’t picture strength without picturing an oak. Its timber is famously tough and long-lasting.