Rob
ADAS, the agricultural advisory service recommend space. Closer
fruiting is at the expense of fruit quality.
I have seen a raspberry cane fruit exceptionally well when planted in
grout buckets - 1 cane per bucket. They were watered every other day,
and fed every other watering. The methods bests suits autumn
raspberries such as Autumn Bliss, Joan J, Joan Squire or Polka
Regards
Clifford
Bawtry, Doncaster, South Yorkshire