In article ,
vincent p. norris writes:
| What I'd like to know is whether I can whack the whole thing back by half...... Is it bulletproof enough for drastic measures?
|
| Be careful. I cut mine back to the ground and it never grew back.

As with most shrubs (and people), they are more resilient when young.
In general, B. davidii and several others can be cut back as hard as
you like. It is generally a good idea to avoid cutting them back to
wood that is more than a few (say, 3-5) years old.

But don't worry - they are short-lived anyway, and will regrow
within a year or two from a new plant.


Regards,
Nick Maclaren.