The sunlight you receive is not only 'direct' from the sun, a lot is
scattered by cloud etc, cos otherwise it would be completely dark in the
shade! It isn't a simple issue, as it depends so much on the type of cloud.
I guess you could try measuring it in different conditions with one of those
light meters photographers used to use.

Stuart

"anne" wrote in message
...
If I trim 4 foot from the height of a hedge will this give me 4 foot more
light on my allotment?

The problem is, that during the day the sun travels the length of a hedge
that runs all the way up the side of the allotment and the hedge puts 50%
of
the allotments's entire length in the shade. This is now - september. How
much will it decrease in winter and how much will it increase in summer?

My main question though, is does the amount you cut off equal the amount
of
sunlight you gain.

Hope you can help, I think I've made a mistake with my choice of allotment
:-(