Hello. I'd like to take a cutting from a tree but it's not something
I've done before. The tree is one of those bushy thorny ones with dark
blue berries that grows near moorland. I have a few questions about
it:

1) What is the best time of year to take a cutting?
2) Where on the tree would be the best place to take one?
3) Should I cut it off near the trunk or away from the trunk, next to
a bud perhaps?
4) Is it best to cut it off with a perpendicular cut or at an angle?

I've read some previous posts which said that if it's done at the
right time of year then rooting hormone isn't necessary. Any advice is
appreciated.

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Many thanks,
Erik