"mikey mike" wrote:

".........we've had it since February, and it has grown one 'new' branch -
but the new branch it straight - what should we do, leave it or lop it ?
......"

Remove it as it will outgrow the rest of the plant and grow about 3 times as
fast.
My Corkscrew Hazel is over 25 yrs old and has never had any fertilizer, and
never thrown a straight shoot.

Most of the plants for sale are Grafted, as it is almost impossible to get
it to root, you may sometimes get plants that are either layered or grown
from offshoots, but they are rare.
--
David Hill
Abacus nurseries
www.abacus-nurseries.co.uk