salix- not really enough room in there to grow them,but i'm growing a Macrocarpa hedge line with the idea to leave the higher brunches overhanging facing north towards the sun.
The plan is i'll then be able to grow a number of various frost tender plants,citrus,tamarillo etc,they'll be grown in large flat livestock water toughs on round posts,so that one,it keeps them up off the roots of the Macrocarpa and two so they can be draged out away from the hedge to allow for enough clearance for hedge maintenance.
Mt.Imagine-that's interesting reading in that link you posted two days ago,shame that so much of that imported plant material brought in NZ is now lost
