For those interested in walled gardens then this link is of interest

http://www.winsfordwalledgarden.free...co.uk/Wall.htm

I would add that I was taught that a wall or hedge gave 1 and a half times
it's height in protection from the wind so a 10ft wall gave 15ft of
protection.
Also most of the hot beds were planted near the wall, you would get a bed of
around 3ft wide against the wall which had fruit tree trained against the
wall and often other tender crops as these could be given added protection
by placing covers from the path to the wall at an angle, similar to cold
frames.
Then the next bed from the path was often 7 - 8ft wide and built as a raised
bed on the "French Garden" idea that is around 12 inch of soil on top of
what would start as 2 - 3 ft or so of fresh stable manure which would heat
up as it rotted, then as it started to cool then it would be planted with
early crops that would benefit from the heat, and Frames with "English
Lights" were laid over these beds.These were 5ft by 5ft and as heavy as
hell(They were still in use when I was first in Horticulture in the early
60's, and I have seen some still in use in the local parks nursery).
Beds further from the walls were used for normal growing.

--
David Hill
Abacus nurseries
www.abacus-nurseries.co.uk