Jane wrote:

For rasps to do well, they like acid, well drained and shady
conditions. However with enough mulching with manure etc., you can get
them to grow reasonably happily in alkaline conditions, though the
canes (once established!) don't last as many years.

I have had wonderful raspberries for several years from canes against a
South facing wall. Which proves nothing, except shows that nature goes
her own sweet way. :-)