Originally posted on Garden Walk Garden Talk:
We all probably learned it in school, but most likely don’t remember the specifics. The picture to the left was taken of my Redspire Pear today. Cold, windy and rainy.
For many years, scientists have tried to fully understand the changes that happen to trees in the Autumn.
As the days grow shorter and the nights grow longer, biochemical processes in the leaf begin to paint the landscape awash with glorious color.
These chemicals are responsible.
- Chlorophyll for greens
- Carotenoids for orange
- Xanthophyll of the Carotenoid group for yellow
- Anthocyanins for reds and purples
- Tannins for brown as a waste product
The image below was taken on Garden Bloggers Bloom Day, a balmy warm day in the 60’s with…
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