🍂 Autumn – the seasonal shift in plant biology.

With the shortened daylight hours and dropping temperatures, trees give us a radiant tapestry of hidden pigments.  This symphony of red, orange and gold is nature’s survival strategy, an elegant preparation for winter dormancy. And this year has been spectacular!

During spring and summer, leaves are dominated by chlorophyll, the green pigment that powers photosynthesis. But as sunlight wanes, chlorophyll production slows and eventually breaks down. This reveals other pigments that were always present but masked, so in essence we are seeing trees in their true colours;
🟠 Carotenes → responsible for yellows and oranges, the same pigments that colour carrots.
🔴 Anthocyanins → produce reds and purples, formed in autumn when sugars get trapped in leaves.
🟡 Xanthophylls → add golden hues, enriching the palette.
The colour intensity is influenced by weather conditions. Warm, sunny days followed by crisp, cool nights enhance anthocyanin production, and dry weather can deepen golds and oranges.

Beyond the aesthetics of this autumnal masterpiece, this transformation is part of a tree’s survival strategy. By shedding leaves, trees conserve water and energy through winter.

🍁 Autumn’s science is a reminder of nature’s resilience, adaptability and genius; hidden potential emerges when conditions change. Nature’s got this!

Autumn – the seasonal shift in plant biology.