The changing colours of autumn
- Published
At this time of year my daily walk becomes even more of a pleasure as the trees are transformed into a riot of vibrant reds and golden yellows.
When my son was small he would ask why the leaves were changing colour and it's a good question.
Leaves starting to change colour in Bedford during the last week of September
Chlorophyll is what gives leaves their green hue, but as trees start to sense the reduction in hours of daylight they begin to slow down their growth which, in turn, starts to limit the production of chlorophyll.
As this process happens the other pigments in the leaves, which are always present, start to reveal themselves.
Â鶹ԼÅÄ Weather Watcher Mare took an autumnal stroll walk through Hampton Court Park and spotted a resting deer
Weather also has an impact. Sunny autumn days break down the chlorophyll more quickly whilst chilly nights help to encourage the reds and purples.
Of course, heavy rain and strong winds will just strip the branches bare before the colours really get going.
Hazy sunshine filters through the autumn leaves in Bermondsey
Given the forecast for the coming days, more of those beautiful colourful leaves could end up being kicked about on the ground on our walks.