In article , ken cohen
writes
Any suggestions for I might try to grow along a very shaded 15 foot
stretch of north- facing garden wall (about 6 foot high) which doesn't
get much direct sunlight? The soil seems very heavy and clumpy, so
presumably has a high clay content, as you'd expect in North London.

The 'Plants in shade' FAQ has lots of suggestions, and originated from
experience of growing in exactly this situation.
--
Kay
"Do not insult the crocodile until you have crossed the river"