"...... Any useful hints and tips for growing cannabis ........."

I have to presume you want to grow it for it's fibre, then the first thing
is to get a licence........ It's now a legal crop for fibre production..
I just wonder what happens when you burn the waste from the crop, leaves etc
after harvest.
I presume you don't stand down wind.

--
David Hill
Abacus nurseries
www.abacus-nurseries.co.uk