I am in Southern NH, zone 5b and am considering giving a fig tree a
try. I have read various techniques for babying the tree through our
winters; trenching, covering, bring em inside and plant along a south
facing wall.

I am planning on the latter as soon as I build the wall which has no
other purpose. Then I plan on constructing a cover with ventilation
for winters.

Anyone care to comment on their succesful techniques? Actually,
unsuccesful techniques are worthwhile too - why reinvent broken
wheels?

TIA

John