Xanthophyll is a natural yellow pigment found in plants. In the summer it is masked by chlorophyll which is the green pigment essential for photosynthesis. It helps protect leaves from damage caused by too much sunlight. As autumn arrives, chlorophyll breaks down. The yellow xanthophyll pigments remain visible, giving leaves their yellow and golden colours. It's there all the summer and it's only towards the end of the life of the leaf that it is revealed.
So now you know too! (If you didn't already.)























