10 Amazing Autumn Tree Facts You Probably Didn’t Know
Autumn is one of the most beautiful seasons for trees, but there’s more going on than meets the eye. Here are ten fascinating facts about trees during autumn:
- Why Leaves Change Colour
As days shorten and temperatures drop, trees stop producing chlorophyll (the green pigment). This reveals hidden pigments like yellow, orange, and red, creating the stunning autumn colours we love.
- Red Leaves Are Special
Unlike yellow and orange pigments, which are always present, red pigments (anthocyanins) are produced in autumn. Scientists believe they help protect leaves while the tree reabsorbs nutrients.
- Leaf Drop Is a Survival Strategy
Deciduous trees shed leaves to conserve water and energy during winter. Without leaves, trees lose less moisture and avoid damage from snow and frost.
- Colour Intensity Depends on Weather
Bright sunny days and cool (but not freezing) nights produce the most vibrant reds and purples. A dull, wet autumn often means muted colours.
- Hidden Colours All Year Round
Yellow and orange pigments are in leaves all summer but masked by green chlorophyll. When chlorophyll fades, these colours finally shine through.
- Trees Prepare for Winter Early
Autumn signals trees to store energy in roots and slow down food production. This is why pruning and planting decisions are best made before hard frosts.
- Leaf Sugar Creates Red Shades
The redder the leaf, the higher its sugar content. Maples often turn brilliant crimson because they trap sugars in their leaves during autumn.
- Abscission Cells Cut Leaves Off
Trees form a special layer of cells at the base of each leaf stem called the abscission layer. This “cuts” the leaf away when it’s time to fall.
- Evergreens Don’t Go Dormant
Unlike deciduous trees, evergreens keep their needles thanks to a waxy coating that reduces water loss. They still photosynthesize slowly through winter.
- Autumn Colours Help Wildlife
Fallen leaves enrich the soil as they decompose, supporting fungi, insects, and small mammals. This natural recycling is vital for woodland ecosystems.
Want to keep your trees healthy this autumn?
Contact Artemis Tree Services for expert advice and seasonal care.
